2902138 has 12 divisors (see below), whose sum is σ = 4625262. Its totient is φ = 1365440.

The previous prime is 2902111. The next prime is 2902147. The reversal of 2902138 is 8312092.

It can be written as a sum of positive squares in 3 ways, for example, as 2845969 + 56169 = 1687^2 + 237^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1933 + ... + 3088.

2^2902138 is an apocalyptic number.

2902138 is a deficient number, since it is larger than the sum of its proper divisors (1723124).

2902138 is a wasteful number, since it uses less digits than its factorization.

2902138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5057 (or 5040 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 2902138 is about 1703.5662593512. The cubic root of 2902138 is about 142.6393507062.

The spelling of 2902138 in words is "two million, nine hundred two thousand, one hundred thirty-eight".