2531379 has 4 divisors (see below), whose sum is σ = 3375176. Its totient is φ = 1687584.

The previous prime is 2531377. The next prime is 2531387. The reversal of 2531379 is 9731352.

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

It is not a de Polignac number, because 2531379 - 2¹ = 2531377 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 (2531371) 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, 421894 + ... + 421899.

It is an arithmetic number, because the mean of its divisors is an integer number (843794).

2^2531379 is an apocalyptic number.

2531379 is a deficient number, since it is larger than the sum of its proper divisors (843797).

2531379 is an equidigital number, since it uses as much as digits as its factorization.

2531379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843796.

The product of its digits is 5670, while the sum is 30.

The square root of 2531379 is about 1591.0307979420. The cubic root of 2531379 is about 136.2863595693.

The spelling of 2531379 in words is "two million, five hundred thirty-one thousand, three hundred seventy-nine".