2790139 has 6 divisors (see below), whose sum is σ = 3066980. Its totient is φ = 2536380.

The previous prime is 2790113. The next prime is 2790143. The reversal of 2790139 is 9310972.

It is not a de Polignac number, because 2790139 - 2⁹ = 2789627 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2790139.

It is not an unprimeable number, because it can be changed into a prime (2790149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11409 + ... + 11650.

2^2790139 is an apocalyptic number.

2790139 is a deficient number, since it is larger than the sum of its proper divisors (276841).

2790139 is a wasteful number, since it uses less digits than its factorization.

2790139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23081 (or 23070 counting only the distinct ones).

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 2790139 is about 1670.3709168924. The cubic root of 2790139 is about 140.7803195149.

The spelling of 2790139 in words is "two million, seven hundred ninety thousand, one hundred thirty-nine".