13947474901 has 2 divisors, whose sum is σ = 13947474902. Its totient is φ = 13947474900.

The previous prime is 13947474851. The next prime is 13947474929. The reversal of 13947474901 is 10947474931.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12424446225 + 1523028676 = 111465^2 + 39026^2 .

It is a cyclic number.

It is not a de Polignac number, because 13947474901 - 2¹⁷ = 13947343829 is a prime.

It is a super-2 number, since 2×13947474901² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13947472901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6973737450 + 6973737451.

It is an arithmetic number, because the mean of its divisors is an integer number (6973737451).

Almost surely, 2^13947474901 is an apocalyptic number.

It is an amenable number.

13947474901 is a deficient number, since it is larger than the sum of its proper divisors (1).

13947474901 is an equidigital number, since it uses as much as digits as its factorization.

13947474901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 762048, while the sum is 49.

The spelling of 13947474901 in words is "thirteen billion, nine hundred forty-seven million, four hundred seventy-four thousand, nine hundred one".