13450637 has 2 divisors, whose sum is σ = 13450638. Its totient is φ = 13450636.

The previous prime is 13450631. The next prime is 13450639. The reversal of 13450637 is 73605431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10982596 + 2468041 = 3314^2 + 1571^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13450637 is a prime.

Together with 13450639, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13450631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6725318 + 6725319.

It is an arithmetic number, because the mean of its divisors is an integer number (6725319).

Almost surely, 2^13450637 is an apocalyptic number.

It is an amenable number.

13450637 is a deficient number, since it is larger than the sum of its proper divisors (1).

13450637 is an equidigital number, since it uses as much as digits as its factorization.

13450637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 13450637 is about 3667.5110088451. The cubic root of 13450637 is about 237.8195852785.

The spelling of 13450637 in words is "thirteen million, four hundred fifty thousand, six hundred thirty-seven".