156191136 has 96 divisors (see below), whose sum is σ = 423960768. Its totient is φ = 50319360.

The previous prime is 156191131. The next prime is 156191141. The reversal of 156191136 is 631191651.

It is an interprime number because it is at equal distance from previous prime (156191131) and next prime (156191141).

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 156191097 and 156191106.

It is not an unprimeable number, because it can be changed into a prime (156191131) 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, 647976 + ... + 648216.

It is an arithmetic number, because the mean of its divisors is an integer number (4416258).

Almost surely, 2^156191136 is an apocalyptic number.

156191136 is a gapful number since it is divisible by the number (16) 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 156191136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211980384).

156191136 is an abundant number, since it is smaller than the sum of its proper divisors (267769632).

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

156191136 is a wasteful number, since it uses less digits than its factorization.

156191136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454 (or 446 counting only the distinct ones).

The product of its digits is 4860, while the sum is 33.

The square root of 156191136 is about 12497.6452182001. The cubic root of 156191136 is about 538.5410274027.

The spelling of 156191136 in words is "one hundred fifty-six million, one hundred ninety-one thousand, one hundred thirty-six".