156855930 has 96 divisors (see below), whose sum is σ = 472977792. Its totient is φ = 32588160.

The previous prime is 156855893. The next prime is 156855943. The reversal of 156855930 is 39558651.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22324 + ... + 28496.

It is an arithmetic number, because the mean of its divisors is an integer number (4926852).

Almost surely, 2^156855930 is an apocalyptic number.

156855930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 156855930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236488896).

156855930 is an abundant number, since it is smaller than the sum of its proper divisors (316121862).

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

156855930 is a wasteful number, since it uses less digits than its factorization.

156855930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6212 (or 6201 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 42.

The square root of 156855930 is about 12524.2137477767. The cubic root of 156855930 is about 539.3040073156.

It can be divided in two parts, 156 and 855930, that added together give a triangular number (856086 = T₁₃₀₈).

The spelling of 156855930 in words is "one hundred fifty-six million, eight hundred fifty-five thousand, nine hundred thirty".