12151600 has 60 divisors (see below), whose sum is σ = 30928824. Its totient is φ = 4572160.

The previous prime is 12151553. The next prime is 12151603. The reversal of 12151600 is 615121.

It is a happy number.

12151600 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12151600² = 295322765120000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (12151603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5907 + ... + 7693.

Almost surely, 2^12151600 is an apocalyptic number.

12151600 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 12151600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15464412).

12151600 is an abundant number, since it is smaller than the sum of its proper divisors (18777224).

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

12151600 is a wasteful number, since it uses less digits than its factorization.

12151600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1822 (or 1811 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 12151600 is about 3485.9145141555. The cubic root of 12151600 is about 229.9029205928.

Adding to 12151600 its reverse (615121), we get a palindrome (12766721).

The spelling of 12151600 in words is "twelve million, one hundred fifty-one thousand, six hundred".