12572578 has 4 divisors (see below), whose sum is σ = 18858870. Its totient is φ = 6286288.

The previous prime is 12572557. The next prime is 12572597. The reversal of 12572578 is 87527521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87527521 = 1319 ⋅66359.

It can be written as a sum of positive squares in only one way, i.e., 12299049 + 273529 = 3507^2 + 523^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3143143 + ... + 3143146.

Almost surely, 2^12572578 is an apocalyptic number.

12572578 is a deficient number, since it is larger than the sum of its proper divisors (6286292).

12572578 is an equidigital number, since it uses as much as digits as its factorization.

12572578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6286291.

The product of its digits is 39200, while the sum is 37.

The square root of 12572578 is about 3545.7831292960. The cubic root of 12572578 is about 232.5277447909.

The spelling of 12572578 in words is "twelve million, five hundred seventy-two thousand, five hundred seventy-eight".