13951957 has 2 divisors, whose sum is σ = 13951958. Its totient is φ = 13951956.

The previous prime is 13951937. The next prime is 13951969. The reversal of 13951957 is 75915931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11895601 + 2056356 = 3449^2 + 1434^2 .

It is a cyclic number.

It is not a de Polignac number, because 13951957 - 2¹¹ = 13949909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13951937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6975978 + 6975979.

It is an arithmetic number, because the mean of its divisors is an integer number (6975979).

Almost surely, 2^13951957 is an apocalyptic number.

It is an amenable number.

13951957 is a deficient number, since it is larger than the sum of its proper divisors (1).

13951957 is an equidigital number, since it uses as much as digits as its factorization.

13951957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42525, while the sum is 40.

The square root of 13951957 is about 3735.2318535802. The cubic root of 13951957 is about 240.7382188737.

The spelling of 13951957 in words is "thirteen million, nine hundred fifty-one thousand, nine hundred fifty-seven".