156385000 has 40 divisors (see below), whose sum is σ = 366421770. Its totient is φ = 62552000.

The previous prime is 156384997. The next prime is 156385007. The reversal of 156385000 is 583651.

156385000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 5 ways, for example, as 3467044 + 152917956 = 1862^2 + 12366^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 156385000.

It is not an unprimeable number, because it can be changed into a prime (156385007) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 10639 + ... + 20638.

Almost surely, 2^156385000 is an apocalyptic number.

156385000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156385000 is an abundant number, since it is smaller than the sum of its proper divisors (210036770).

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

156385000 is an equidigital number, since it uses as much as digits as its factorization.

156385000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31303 (or 31284 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 156385000 is about 12505.3988341036. The cubic root of 156385000 is about 538.7637471527.

The spelling of 156385000 in words is "one hundred fifty-six million, three hundred eighty-five thousand".