13161239 has 8 divisors (see below), whose sum is σ = 16198560. Its totient is φ = 10413216.

The previous prime is 13161229. The next prime is 13161277. The reversal of 13161239 is 93216131.

13161239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13161239 - 2¹⁶ = 13095703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13161229) 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, 72224 + ... + 72405.

It is an arithmetic number, because the mean of its divisors is an integer number (2024820).

Almost surely, 2^13161239 is an apocalyptic number.

13161239 is a deficient number, since it is larger than the sum of its proper divisors (3037321).

13161239 is a wasteful number, since it uses less digits than its factorization.

13161239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144649.

The product of its digits is 972, while the sum is 26.

The square root of 13161239 is about 3627.8421961271. The cubic root of 13161239 is about 236.1015973078.

The spelling of 13161239 in words is "thirteen million, one hundred sixty-one thousand, two hundred thirty-nine".