12613642 has 4 divisors (see below), whose sum is σ = 18920466. Its totient is φ = 6306820.

The previous prime is 12613639. The next prime is 12613661. The reversal of 12613642 is 24631621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 7733961 + 4879681 = 2781^2 + 2209^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3153409 + ... + 3153412.

Almost surely, 2^12613642 is an apocalyptic number.

12613642 is a deficient number, since it is larger than the sum of its proper divisors (6306824).

12613642 is an equidigital number, since it uses as much as digits as its factorization.

12613642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6306823.

The product of its digits is 1728, while the sum is 25.

The square root of 12613642 is about 3551.5689490703. The cubic root of 12613642 is about 232.7806269626.

The spelling of 12613642 in words is "twelve million, six hundred thirteen thousand, six hundred forty-two".