12160639 has 4 divisors (see below), whose sum is σ = 12419424. Its totient is φ = 11901856.

The previous prime is 12160607. The next prime is 12160669. The reversal of 12160639 is 93606121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12160639 - 2⁵ = 12160607 is a prime.

It is a super-2 number, since 2×12160639² = 295762281776642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12160669) 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, 129322 + ... + 129415.

It is an arithmetic number, because the mean of its divisors is an integer number (3104856).

Almost surely, 2^12160639 is an apocalyptic number.

12160639 is a deficient number, since it is larger than the sum of its proper divisors (258785).

12160639 is an equidigital number, since it uses as much as digits as its factorization.

12160639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258784.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 12160639 is about 3487.2107765376. The cubic root of 12160639 is about 229.9599110974.

The spelling of 12160639 in words is "twelve million, one hundred sixty thousand, six hundred thirty-nine".