11457975 has 24 divisors (see below), whose sum is σ = 19460560. Its totient is φ = 5944320.

The previous prime is 11457973. The next prime is 11457997. The reversal of 11457975 is 57975411.

It is not a de Polignac number, because 11457975 - 2¹ = 11457973 is a prime.

It is a super-2 number, since 2×11457975² = 262570382201250, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11457973) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 711 + ... + 4839.

Almost surely, 2^11457975 is an apocalyptic number.

11457975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11457975 is a deficient number, since it is larger than the sum of its proper divisors (8002585).

11457975 is a wasteful number, since it uses less digits than its factorization.

11457975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4179 (or 4174 counting only the distinct ones).

The product of its digits is 44100, while the sum is 39.

The square root of 11457975 is about 3384.9630721767. The cubic root of 11457975 is about 225.4425856324.

The spelling of 11457975 in words is "eleven million, four hundred fifty-seven thousand, nine hundred seventy-five".