1307449136 has 20 divisors (see below), whose sum is σ = 2895066192. Its totient is φ = 560335296.

The previous prime is 1307449133. The next prime is 1307449153. The reversal of 1307449136 is 6319447031.

It is a self number, because there is not a number n which added to its sum of digits gives 1307449136.

It is not an unprimeable number, because it can be changed into a prime (1307449133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5836715 + ... + 5836938.

Almost surely, 2^1307449136 is an apocalyptic number.

1307449136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1307449136 is an abundant number, since it is smaller than the sum of its proper divisors (1587617056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1307449136 is a wasteful number, since it uses less digits than its factorization.

1307449136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11673668 (or 11673662 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 1307449136 is about 36158.6661258404. Note that the first 3 decimals coincide. The cubic root of 1307449136 is about 1093.4735124978.

The spelling of 1307449136 in words is "one billion, three hundred seven million, four hundred forty-nine thousand, one hundred thirty-six".