2501139 has 4 divisors (see below), whose sum is σ = 3334856. Its totient is φ = 1667424.

The previous prime is 2501137. The next prime is 2501143. The reversal of 2501139 is 9311052.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2501139 - 2¹ = 2501137 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2501131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 416854 + ... + 416859.

It is an arithmetic number, because the mean of its divisors is an integer number (833714).

2^2501139 is an apocalyptic number.

2501139 is a deficient number, since it is larger than the sum of its proper divisors (833717).

2501139 is an equidigital number, since it uses as much as digits as its factorization.

2501139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833716.

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 2501139 is about 1581.4989724941. The cubic root of 2501139 is about 135.7414891781.

The spelling of 2501139 in words is "two million, five hundred one thousand, one hundred thirty-nine".