13457975 has 12 divisors (see below), whose sum is σ = 16740000. Its totient is φ = 10732800.

The previous prime is 13457971. The next prime is 13457987. The reversal of 13457975 is 57975431.

It is not a de Polignac number, because 13457975 - 2² = 13457971 is a prime.

It is a super-2 number, since 2×13457975² = 362234182201250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13457971) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10151 + ... + 11399.

It is an arithmetic number, because the mean of its divisors is an integer number (1395000).

Almost surely, 2^13457975 is an apocalyptic number.

13457975 is a deficient number, since it is larger than the sum of its proper divisors (3282025).

13457975 is a wasteful number, since it uses less digits than its factorization.

13457975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1690 (or 1685 counting only the distinct ones).

The product of its digits is 132300, while the sum is 41.

The square root of 13457975 is about 3668.5112784343. The cubic root of 13457975 is about 237.8628249373.

The spelling of 13457975 in words is "thirteen million, four hundred fifty-seven thousand, nine hundred seventy-five".