13512522469 has 2 divisors, whose sum is σ = 13512522470. Its totient is φ = 13512522468.

The previous prime is 13512522427. The next prime is 13512522497. The reversal of 13512522469 is 96422521531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9373144225 + 4139378244 = 96815^2 + 64338^2 .

It is a cyclic number.

It is not a de Polignac number, because 13512522469 - 2⁷ = 13512522341 is a prime.

It is a super-2 number, since 2×13512522469² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13512322469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6756261234 + 6756261235.

It is an arithmetic number, because the mean of its divisors is an integer number (6756261235).

Almost surely, 2^13512522469 is an apocalyptic number.

It is an amenable number.

13512522469 is a deficient number, since it is larger than the sum of its proper divisors (1).

13512522469 is an equidigital number, since it uses as much as digits as its factorization.

13512522469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129600, while the sum is 40.

The spelling of 13512522469 in words is "thirteen billion, five hundred twelve million, five hundred twenty-two thousand, four hundred sixty-nine".