12703642 has 12 divisors (see below), whose sum is σ = 22166730. Its totient is φ = 5444376.

The previous prime is 12703637. The next prime is 12703651. The reversal of 12703642 is 24630721.

It can be written as a sum of positive squares in only one way, i.e., 12595401 + 108241 = 3549^2 + 329^2 .

It is a super-2 number, since 2×12703642² = 322765040128328, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64717 + ... + 64912.

Almost surely, 2^12703642 is an apocalyptic number.

12703642 is a deficient number, since it is larger than the sum of its proper divisors (9463088).

12703642 is a wasteful number, since it uses less digits than its factorization.

12703642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129645 (or 129638 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 12703642 is about 3564.2168845344. The cubic root of 12703642 is about 233.3329555549.

The spelling of 12703642 in words is "twelve million, seven hundred three thousand, six hundred forty-two".