12578475 has 96 divisors (see below), whose sum is σ = 27220480. Its totient is φ = 4976640.

The previous prime is 12578471. The next prime is 12578477. The reversal of 12578475 is 57487521.

It is not a de Polignac number, because 12578475 - 2² = 12578471 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (12578471) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 129627 + ... + 129723.

Almost surely, 2^12578475 is an apocalyptic number.

12578475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12578475 is an abundant number, since it is smaller than the sum of its proper divisors (14642005).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12578475 is a wasteful number, since it uses less digits than its factorization.

12578475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149 (or 144 counting only the distinct ones).

The product of its digits is 78400, while the sum is 39.

The square root of 12578475 is about 3546.6145829509. The cubic root of 12578475 is about 232.5640937875.

The spelling of 12578475 in words is "twelve million, five hundred seventy-eight thousand, four hundred seventy-five".