2912157 has 12 divisors (see below), whose sum is σ = 4228224. Its totient is φ = 1931400.

The previous prime is 2912141. The next prime is 2912197. The reversal of 2912157 is 7512192.

It is not a de Polignac number, because 2912157 - 2⁴ = 2912141 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2912157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2912197) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1282 + ... + 2732.

It is an arithmetic number, because the mean of its divisors is an integer number (352352).

2^2912157 is an apocalyptic number.

It is an amenable number.

2912157 is a deficient number, since it is larger than the sum of its proper divisors (1316067).

2912157 is a wasteful number, since it uses less digits than its factorization.

2912157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1680 (or 1677 counting only the distinct ones).

The product of its digits is 1260, while the sum is 27.

The square root of 2912157 is about 1706.5043217056. The cubic root of 2912157 is about 142.8033059518.

The spelling of 2912157 in words is "two million, nine hundred twelve thousand, one hundred fifty-seven".