13953975 has 36 divisors (see below), whose sum is σ = 26844264. Its totient is φ = 6377280.

The previous prime is 13953931. The next prime is 13953997. The reversal of 13953975 is 57935931.

It is a happy number.

It is not a de Polignac number, because 13953975 - 2¹³ = 13945783 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1777 + ... + 5573.

It is an arithmetic number, because the mean of its divisors is an integer number (745674).

Almost surely, 2^13953975 is an apocalyptic number.

13953975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13953975 is a deficient number, since it is larger than the sum of its proper divisors (12890289).

13953975 is a wasteful number, since it uses less digits than its factorization.

13953975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3824 (or 3812 counting only the distinct ones).

The product of its digits is 127575, while the sum is 42.

The square root of 13953975 is about 3735.5019743001. The cubic root of 13953975 is about 240.7498250425.

The spelling of 13953975 in words is "thirteen million, nine hundred fifty-three thousand, nine hundred seventy-five".