13489631 has 2 divisors, whose sum is σ = 13489632. Its totient is φ = 13489630.

The previous prime is 13489621. The next prime is 13489649. The reversal of 13489631 is 13698431.

It is a weak prime.

It is an emirp because it is prime and its reverse (13698431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13489631 - 2¹⁴ = 13473247 is a prime.

It is a super-2 number, since 2×13489631² = 363940289032322, 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 = 13489591 and 13489600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13489621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6744815 + 6744816.

It is an arithmetic number, because the mean of its divisors is an integer number (6744816).

Almost surely, 2^13489631 is an apocalyptic number.

13489631 is a deficient number, since it is larger than the sum of its proper divisors (1).

13489631 is an equidigital number, since it uses as much as digits as its factorization.

13489631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 35.

The square root of 13489631 is about 3672.8233009498. The cubic root of 13489631 is about 238.0491801011.

The spelling of 13489631 in words is "thirteen million, four hundred eighty-nine thousand, six hundred thirty-one".