13307237449 has 9 divisors (see below), whose sum is σ = 14628358381. Its totient is φ = 12096335020.

The previous prime is 13307237429. The next prime is 13307237459. The reversal of 13307237449 is 94473270331.

The square root of 13307237449 is 115357.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 13307237449 - 2²⁹ = 12770366537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13307237429) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1263684 + ... + 1274170.

Almost surely, 2^13307237449 is an apocalyptic number.

13307237449 is the 115357-th square number.

13307237449 is the 57679-th centered octagonal number.

It is an amenable number.

13307237449 is a deficient number, since it is larger than the sum of its proper divisors (1321120932).

13307237449 is an frugal number, since it uses more digits than its factorization.

13307237449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20996 (or 10498 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 43.

The spelling of 13307237449 in words is "thirteen billion, three hundred seven million, two hundred thirty-seven thousand, four hundred forty-nine".