12061500 has 192 divisors, whose sum is σ = 41513472. Its totient is φ = 2688000.

The previous prime is 12061481. The next prime is 12061501. The reversal of 12061500 is 516021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12061500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12061501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 280479 + ... + 280521.

It is an arithmetic number, because the mean of its divisors is an integer number (216216).

Almost surely, 2^12061500 is an apocalyptic number.

12061500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12061500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20756736).

12061500 is an abundant number, since it is smaller than the sum of its proper divisors (29451972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12061500 is a wasteful number, since it uses less digits than its factorization.

12061500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 12061500 is about 3472.9670312285. The cubic root of 12061500 is about 229.3332929586. Note that the first 3 decimals are identical.

Adding to 12061500 its reverse (516021), we get a palindrome (12577521).

It can be divided in two parts, 12061 and 500, that added together give a triangular number (12561 = T₁₅₈).

The spelling of 12061500 in words is "twelve million, sixty-one thousand, five hundred".