156117012 has 48 divisors (see below), whose sum is σ = 380261952. Its totient is φ = 49803520.

The previous prime is 156117011. The next prime is 156117019. The reversal of 156117012 is 210711651.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156117011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23083 + ... + 29069.

It is an arithmetic number, because the mean of its divisors is an integer number (7922124).

Almost surely, 2^156117012 is an apocalyptic number.

156117012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

156117012 is an abundant number, since it is smaller than the sum of its proper divisors (224144940).

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

156117012 is a wasteful number, since it uses less digits than its factorization.

156117012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6088 (or 6086 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 24.

The square root of 156117012 is about 12494.6793476263. The cubic root of 156117012 is about 538.4558216892.

Adding to 156117012 its reverse (210711651), we get a palindrome (366828663).

The spelling of 156117012 in words is "one hundred fifty-six million, one hundred seventeen thousand, twelve".