12345975 has 36 divisors (see below), whose sum is σ = 22725976. Its totient is φ = 6402240.

The previous prime is 12345959. The next prime is 12346013. The reversal of 12345975 is 57954321.

It is not a de Polignac number, because 12345975 - 2⁴ = 12345959 is a prime.

It is a Duffinian number.

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, 7584 + ... + 9066.

Almost surely, 2^12345975 is an apocalyptic number.

12345975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12345975 is a deficient number, since it is larger than the sum of its proper divisors (10380001).

12345975 is a wasteful number, since it uses less digits than its factorization.

12345975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1536 (or 1528 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 12345975 is about 3513.6839641607. The cubic root of 12345975 is about 231.1222718062.

The spelling of 12345975 in words is "twelve million, three hundred forty-five thousand, nine hundred seventy-five".