13377631 has 2 divisors, whose sum is σ = 13377632. Its totient is φ = 13377630.

The previous prime is 13377629. The next prime is 13377643. The reversal of 13377631 is 13677331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13377631 - 2¹ = 13377629 is a prime.

It is a super-2 number, since 2×13377631² = 357922022344322, which contains 22 as substring.

Together with 13377629, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 13377593 and 13377602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13377131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6688815 + 6688816.

It is an arithmetic number, because the mean of its divisors is an integer number (6688816).

Almost surely, 2^13377631 is an apocalyptic number.

13377631 is a deficient number, since it is larger than the sum of its proper divisors (1).

13377631 is an equidigital number, since it uses as much as digits as its factorization.

13377631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7938, while the sum is 31.

The square root of 13377631 is about 3657.5443948092. The cubic root of 13377631 is about 237.3885334735.

The spelling of 13377631 in words is "thirteen million, three hundred seventy-seven thousand, six hundred thirty-one".