13528631 has 2 divisors, whose sum is σ = 13528632. Its totient is φ = 13528630.

The previous prime is 13528607. The next prime is 13528637. The reversal of 13528631 is 13682531.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13528631 is a prime.

It is a super-2 number, since 2×13528631² = 366047713468322, 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 = 13528594 and 13528603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13528637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6764315 + 6764316.

It is an arithmetic number, because the mean of its divisors is an integer number (6764316).

Almost surely, 2^13528631 is an apocalyptic number.

13528631 is a deficient number, since it is larger than the sum of its proper divisors (1).

13528631 is an equidigital number, since it uses as much as digits as its factorization.

13528631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 29.

The square root of 13528631 is about 3678.1287361918. The cubic root of 13528631 is about 238.2783681203.

The spelling of 13528631 in words is "thirteen million, five hundred twenty-eight thousand, six hundred thirty-one".