13957465 has 4 divisors (see below), whose sum is σ = 16748964. Its totient is φ = 11165968.

The previous prime is 13957451. The next prime is 13957469. The reversal of 13957465 is 56475931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56475931 = 113 ⋅499787.

It can be written as a sum of positive squares in 2 ways, for example, as 6405961 + 7551504 = 2531^2 + 2748^2 .

It is a cyclic number.

It is not a de Polignac number, because 13957465 - 2⁷ = 13957337 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13957469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1395742 + ... + 1395751.

It is an arithmetic number, because the mean of its divisors is an integer number (4187241).

Almost surely, 2^13957465 is an apocalyptic number.

It is an amenable number.

13957465 is a deficient number, since it is larger than the sum of its proper divisors (2791499).

13957465 is an equidigital number, since it uses as much as digits as its factorization.

13957465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2791498.

The product of its digits is 113400, while the sum is 40.

The square root of 13957465 is about 3735.9690844545. The cubic root of 13957465 is about 240.7698945174.

The spelling of 13957465 in words is "thirteen million, nine hundred fifty-seven thousand, four hundred sixty-five".