2531519 has 2 divisors, whose sum is σ = 2531520. Its totient is φ = 2531518.

The previous prime is 2531489. The next prime is 2531527. The reversal of 2531519 is 9151352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2531519 - 2¹² = 2527423 is a prime.

It is a super-2 number, since 2×2531519² = 12817176894722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2531549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1265759 + 1265760.

It is an arithmetic number, because the mean of its divisors is an integer number (1265760).

2^2531519 is an apocalyptic number.

2531519 is a deficient number, since it is larger than the sum of its proper divisors (1).

2531519 is an equidigital number, since it uses as much as digits as its factorization.

2531519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1350, while the sum is 26.

The square root of 2531519 is about 1591.0747939679. The cubic root of 2531519 is about 136.2888719994.

The spelling of 2531519 in words is "two million, five hundred thirty-one thousand, five hundred nineteen".