1307138212 has 24 divisors (see below), whose sum is σ = 2409545600. Its totient is φ = 618744096.

The previous prime is 1307138191. The next prime is 1307138213. The reversal of 1307138212 is 2128317031.

It is a super-2 number, since 2×1307138212² = 3417220610541113888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1307138213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123589 + ... + 133747.

Almost surely, 2^1307138212 is an apocalyptic number.

It is an amenable number.

1307138212 is a deficient number, since it is larger than the sum of its proper divisors (1102407388).

1307138212 is a wasteful number, since it uses less digits than its factorization.

1307138212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11875 (or 11873 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 1307138212 is about 36154.3664306263. The cubic root of 1307138212 is about 1093.3868261140.

The spelling of 1307138212 in words is "one billion, three hundred seven million, one hundred thirty-eight thousand, two hundred twelve".