3157000 has 128 divisors (see below), whose sum is σ = 9434880. Its totient is φ = 960000.

The previous prime is 3156997. The next prime is 3157001. The reversal of 3157000 is 7513.

It is a sliding number, since 3157000 = 32000 + 3125000 and 1/32000 + 1/3125000 = 0.00003157000.

It is not an unprimeable number, because it can be changed into a prime (3157001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76980 + ... + 77020.

It is an arithmetic number, because the mean of its divisors is an integer number (73710).

Almost surely, 2^3157000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3157000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4717440).

3157000 is an abundant number, since it is smaller than the sum of its proper divisors (6277880).

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

3157000 is a wasteful number, since it uses less digits than its factorization.

3157000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80 (or 66 counting only the distinct ones).

The product of its (nonzero) digits is 105, while the sum is 16.

The square root of 3157000 is about 1776.7948671695. The cubic root of 3157000 is about 146.6982255321.

The spelling of 3157000 in words is "three million, one hundred fifty-seven thousand".