12151040 has 72 divisors (see below), whose sum is σ = 31788288. Its totient is φ = 4413440.

The previous prime is 12151033. The next prime is 12151063. The reversal of 12151040 is 4015121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13649 + ... + 14511.

It is an arithmetic number, because the mean of its divisors is an integer number (441504).

Almost surely, 2^12151040 is an apocalyptic number.

12151040 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 12151040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15894144).

12151040 is an abundant number, since it is smaller than the sum of its proper divisors (19637248).

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

12151040 is an equidigital number, since it uses as much as digits as its factorization.

12151040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895 (or 881 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 12151040 is about 3485.8341899752. The cubic root of 12151040 is about 229.8993888874.

Adding to 12151040 its reverse (4015121), we get a palindrome (16166161).

The spelling of 12151040 in words is "twelve million, one hundred fifty-one thousand, forty".