7513818131 has 2 divisors, whose sum is σ = 7513818132. Its totient is φ = 7513818130.

The previous prime is 7513818097. The next prime is 7513818149. The reversal of 7513818131 is 1318183157.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7513818131 - 2¹⁴ = 7513801747 is a prime.

It is a super-3 number, since 3×7513818131³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (7513818731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3756909065 + 3756909066.

It is an arithmetic number, because the mean of its divisors is an integer number (3756909066).

Almost surely, 2^7513818131 is an apocalyptic number.

7513818131 is a deficient number, since it is larger than the sum of its proper divisors (1).

7513818131 is an equidigital number, since it uses as much as digits as its factorization.

7513818131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 38.

The square root of 7513818131 is about 86682.2826822183. The cubic root of 7513818131 is about 1958.6352198136.

The spelling of 7513818131 in words is "seven billion, five hundred thirteen million, eight hundred eighteen thousand, one hundred thirty-one".