156857000 has 64 divisors (see below), whose sum is σ = 369195840. Its totient is φ = 62376000.

The previous prime is 156856981. The next prime is 156857009. The reversal of 156857000 is 758651.

It is not an unprimeable number, because it can be changed into a prime (156857009) 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 15 ways as a sum of consecutive naturals, for example, 226655 + ... + 227345.

It is an arithmetic number, because the mean of its divisors is an integer number (5768685).

Almost surely, 2^156857000 is an apocalyptic number.

156857000 is a gapful number since it is divisible by the number (10) 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 156857000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184597920).

156857000 is an abundant number, since it is smaller than the sum of its proper divisors (212338840).

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

156857000 is a wasteful number, since it uses less digits than its factorization.

156857000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939 (or 925 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 156857000 is about 12524.2564649563. The cubic root of 156857000 is about 539.3052336086.

The spelling of 156857000 in words is "one hundred fifty-six million, eight hundred fifty-seven thousand".