2390139 has 6 divisors (see below), whose sum is σ = 3452436. Its totient is φ = 1593420.

The previous prime is 2390123. The next prime is 2390147. The reversal of 2390139 is 9310932.

It is not a de Polignac number, because 2390139 - 2⁴ = 2390123 is a prime.

2390139 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2390159) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 132777 + ... + 132794.

It is an arithmetic number, because the mean of its divisors is an integer number (575406).

2^2390139 is an apocalyptic number.

2390139 is a deficient number, since it is larger than the sum of its proper divisors (1062297).

2390139 is a wasteful number, since it uses less digits than its factorization.

2390139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265577 (or 265574 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The square root of 2390139 is about 1546.0074385332. The cubic root of 2390139 is about 133.7029694604.

The spelling of 2390139 in words is "two million, three hundred ninety thousand, one hundred thirty-nine".