12065431 has 8 divisors (see below), whose sum is σ = 13829024. Its totient is φ = 10311840.

The previous prime is 12065429. The next prime is 12065477. The reversal of 12065431 is 13456021.

12065431 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 not a de Polignac number, because 12065431 - 2¹ = 12065429 is a prime.

It is a super-2 number, since 2×12065431² = 291149250431522, 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 (12065401) 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, 301 + ... + 4921.

It is an arithmetic number, because the mean of its divisors is an integer number (1728628).

Almost surely, 2^12065431 is an apocalyptic number.

12065431 is a deficient number, since it is larger than the sum of its proper divisors (1763593).

12065431 is an equidigital number, since it uses as much as digits as its factorization.

12065431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5001.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 12065431 is about 3473.5329277265. The cubic root of 12065431 is about 229.3582044886.

The spelling of 12065431 in words is "twelve million, sixty-five thousand, four hundred thirty-one".