13045239 has 32 divisors (see below), whose sum is σ = 20744640. Its totient is φ = 8073216.

The previous prime is 13045237. The next prime is 13045247. The reversal of 13045239 is 93254031.

13045239 is a `hidden beast` number, since 130 + 4 + 523 + 9 = 666.

It is not a de Polignac number, because 13045239 - 2¹ = 13045237 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13045237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44377 + ... + 44669.

It is an arithmetic number, because the mean of its divisors is an integer number (648270).

Almost surely, 2^13045239 is an apocalyptic number.

13045239 is a deficient number, since it is larger than the sum of its proper divisors (7699401).

13045239 is a wasteful number, since it uses less digits than its factorization.

13045239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416 (or 410 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 13045239 is about 3611.8193476419. The cubic root of 13045239 is about 235.4059017954.

It can be divided in two parts, 130 and 45239, that added together give a square (45369 = 213²).

The spelling of 13045239 in words is "thirteen million, forty-five thousand, two hundred thirty-nine".