13875961 has 8 divisors (see below), whose sum is σ = 16028064. Its totient is φ = 11872320.

The previous prime is 13875937. The next prime is 13875977. The reversal of 13875961 is 16957831.

13875961 = 174² + 175² + ... + 360².

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13875961 - 2⁵ = 13875929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13875931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36915 + ... + 37288.

It is an arithmetic number, because the mean of its divisors is an integer number (2003508).

Almost surely, 2^13875961 is an apocalyptic number.

13875961 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13875961 is a deficient number, since it is larger than the sum of its proper divisors (2152103).

13875961 is a wasteful number, since it uses less digits than its factorization.

13875961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74231.

The product of its digits is 45360, while the sum is 40.

The square root of 13875961 is about 3725.0451003981. The cubic root of 13875961 is about 240.3003242636.

The spelling of 13875961 in words is "thirteen million, eight hundred seventy-five thousand, nine hundred sixty-one".