12156460 has 12 divisors (see below), whose sum is σ = 25528608. Its totient is φ = 4862576.

The previous prime is 12156439. The next prime is 12156467. The reversal of 12156460 is 6465121.

It is not an unprimeable number, because it can be changed into a prime (12156467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303892 + ... + 303931.

It is an arithmetic number, because the mean of its divisors is an integer number (2127384).

Almost surely, 2^12156460 is an apocalyptic number.

12156460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12156460 is an abundant number, since it is smaller than the sum of its proper divisors (13372148).

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

12156460 is a wasteful number, since it uses less digits than its factorization.

12156460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607832 (or 607830 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 12156460 is about 3486.6115355743. The cubic root of 12156460 is about 229.9335661942.

The spelling of 12156460 in words is "twelve million, one hundred fifty-six thousand, four hundred sixty".