131513519 has 2 divisors, whose sum is σ = 131513520. Its totient is φ = 131513518.

The previous prime is 131513491. The next prime is 131513549. The reversal of 131513519 is 915315131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131513519 - 2¹⁶ = 131447983 is a prime.

It is a super-2 number, since 2×131513519² = 34591611359526722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 131513491 and 131513500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131513549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65756759 + 65756760.

It is an arithmetic number, because the mean of its divisors is an integer number (65756760).

Almost surely, 2^131513519 is an apocalyptic number.

131513519 is a deficient number, since it is larger than the sum of its proper divisors (1).

131513519 is an equidigital number, since it uses as much as digits as its factorization.

131513519 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2025, while the sum is 29.

The square root of 131513519 is about 11467.9343824422. The cubic root of 131513519 is about 508.5380650084.

The spelling of 131513519 in words is "one hundred thirty-one million, five hundred thirteen thousand, five hundred nineteen".