13901497 has 2 divisors, whose sum is σ = 13901498. Its totient is φ = 13901496.

The previous prime is 13901477. The next prime is 13901509. The reversal of 13901497 is 79410931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13660416 + 241081 = 3696^2 + 491^2 .

It is an emirp because it is prime and its reverse (79410931) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13901497 is a prime.

It is not a weakly prime, because it can be changed into another prime (13901417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6950748 + 6950749.

It is an arithmetic number, because the mean of its divisors is an integer number (6950749).

Almost surely, 2^13901497 is an apocalyptic number.

It is an amenable number.

13901497 is a deficient number, since it is larger than the sum of its proper divisors (1).

13901497 is an equidigital number, since it uses as much as digits as its factorization.

13901497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 13901497 is about 3728.4711343928. The cubic root of 13901497 is about 240.4476425574.

The spelling of 13901497 in words is "thirteen million, nine hundred one thousand, four hundred ninety-seven".