12653542 has 32 divisors (see below), whose sum is σ = 22892544. Its totient is φ = 5174400.

The previous prime is 12653539. The next prime is 12653551. The reversal of 12653542 is 24535621.

It is a super-2 number, since 2×12653542² = 320224250291528, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12653542.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7867 + ... + 9337.

It is an arithmetic number, because the mean of its divisors is an integer number (715392).

Almost surely, 2^12653542 is an apocalyptic number.

12653542 is a deficient number, since it is larger than the sum of its proper divisors (10239002).

12653542 is a wasteful number, since it uses less digits than its factorization.

12653542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1524.

The product of its digits is 7200, while the sum is 28.

The square root of 12653542 is about 3557.1817496440. The cubic root of 12653542 is about 233.0258157523.

The spelling of 12653542 in words is "twelve million, six hundred fifty-three thousand, five hundred forty-two".