2915901 has 12 divisors (see below), whose sum is σ = 4292028. Its totient is φ = 1906944.

The previous prime is 2915897. The next prime is 2915903. The reversal of 2915901 is 1095192.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1863225 + 1052676 = 1365^2 + 1026^2 .

It is not a de Polignac number, because 2915901 - 2² = 2915897 is a prime.

2915901 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2915903) 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, 2580 + ... + 3533.

It is an arithmetic number, because the mean of its divisors is an integer number (357669).

2^2915901 is an apocalyptic number.

It is an amenable number.

2915901 is a deficient number, since it is larger than the sum of its proper divisors (1376127).

2915901 is a wasteful number, since it uses less digits than its factorization.

2915901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6172 (or 6169 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 27.

The square root of 2915901 is about 1707.6009486997. The cubic root of 2915901 is about 142.8644778615.

The spelling of 2915901 in words is "two million, nine hundred fifteen thousand, nine hundred one".