156861936 has 360 divisors, whose sum is σ = 582177024. Its totient is φ = 38949120.

The previous prime is 156861919. The next prime is 156861937. The reversal of 156861936 is 639168651.

It is a junction number, because it is equal to n+sod(n) for n = 156861891 and 156861900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156861937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3337465 + ... + 3337511.

Almost surely, 2^156861936 is an apocalyptic number.

156861936 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 156861936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291088512).

156861936 is an abundant number, since it is smaller than the sum of its proper divisors (425315088).

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

156861936 is a wasteful number, since it uses less digits than its factorization.

156861936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129 (or 113 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 156861936 is about 12524.4535210124. The cubic root of 156861936 is about 539.3108905291.

It can be divided in two parts, 1568 and 61936, that added together give a square (63504 = 252²).

The spelling of 156861936 in words is "one hundred fifty-six million, eight hundred sixty-one thousand, nine hundred thirty-six".