12157710 has 32 divisors (see below), whose sum is σ = 29417472. Its totient is φ = 3215520.

The previous prime is 12157697. The next prime is 12157711. The reversal of 12157710 is 1775121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12157711) 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 15 ways as a sum of consecutive naturals, for example, 2215 + ... + 5405.

It is an arithmetic number, because the mean of its divisors is an integer number (919296).

Almost surely, 2^12157710 is an apocalyptic number.

12157710 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12157710 is an abundant number, since it is smaller than the sum of its proper divisors (17259762).

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

12157710 is a wasteful number, since it uses less digits than its factorization.

12157710 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3328.

The product of its (nonzero) digits is 490, while the sum is 24.

The square root of 12157710 is about 3486.7907881030. The cubic root of 12157710 is about 229.9414469727.

The spelling of 12157710 in words is "twelve million, one hundred fifty-seven thousand, seven hundred ten".