12957562 has 4 divisors (see below), whose sum is σ = 19436346. Its totient is φ = 6478780.

The previous prime is 12957557. The next prime is 12957611. The reversal of 12957562 is 26575921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 26575921 = 457 ⋅58153.

It can be written as a sum of positive squares in only one way, i.e., 12952801 + 4761 = 3599^2 + 69^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3239389 + ... + 3239392.

Almost surely, 2^12957562 is an apocalyptic number.

12957562 is a deficient number, since it is larger than the sum of its proper divisors (6478784).

12957562 is an equidigital number, since it uses as much as digits as its factorization.

12957562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6478783.

The product of its digits is 37800, while the sum is 37.

The square root of 12957562 is about 3599.6613729627. The cubic root of 12957562 is about 234.8773284611.

The spelling of 12957562 in words is "twelve million, nine hundred fifty-seven thousand, five hundred sixty-two".