13972507 has 2 divisors, whose sum is σ = 13972508. Its totient is φ = 13972506.

The previous prime is 13972481. The next prime is 13972573. The reversal of 13972507 is 70527931.

13972507 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (70527931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13972507 - 2⁷ = 13972379 is a prime.

It is not a weakly prime, because it can be changed into another prime (13972597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6986253 + 6986254.

It is an arithmetic number, because the mean of its divisors is an integer number (6986254).

Almost surely, 2^13972507 is an apocalyptic number.

13972507 is a deficient number, since it is larger than the sum of its proper divisors (1).

13972507 is an equidigital number, since it uses as much as digits as its factorization.

13972507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13230, while the sum is 34.

The square root of 13972507 is about 3737.9816746474. The cubic root of 13972507 is about 240.8563562664.

The spelling of 13972507 in words is "thirteen million, nine hundred seventy-two thousand, five hundred seven".