13504453531 has 2 divisors, whose sum is σ = 13504453532. Its totient is φ = 13504453530.

The previous prime is 13504453447. The next prime is 13504453601. The reversal of 13504453531 is 13535440531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13504453531 - 2⁹ = 13504453019 is a prime.

It is a super-2 number, since 2×13504453531² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13504453231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6752226765 + 6752226766.

It is an arithmetic number, because the mean of its divisors is an integer number (6752226766).

Almost surely, 2^13504453531 is an apocalyptic number.

13504453531 is a deficient number, since it is larger than the sum of its proper divisors (1).

13504453531 is an equidigital number, since it uses as much as digits as its factorization.

13504453531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54000, while the sum is 34.

The spelling of 13504453531 in words is "thirteen billion, five hundred four million, four hundred fifty-three thousand, five hundred thirty-one".