12053731 has 4 divisors (see below), whose sum is σ = 12762792. Its totient is φ = 11344672.

The previous prime is 12053729. The next prime is 12053747. The reversal of 12053731 is 13735021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13735021 = 71 ⋅193451.

It is a cyclic number.

It is not a de Polignac number, because 12053731 - 2¹ = 12053729 is a prime.

It is a super-2 number, since 2×12053731² = 290584862040722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12053131) 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, 354505 + ... + 354538.

It is an arithmetic number, because the mean of its divisors is an integer number (3190698).

Almost surely, 2^12053731 is an apocalyptic number.

12053731 is a deficient number, since it is larger than the sum of its proper divisors (709061).

12053731 is an equidigital number, since it uses as much as digits as its factorization.

12053731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709060.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 12053731 is about 3471.8483549833. The cubic root of 12053731 is about 229.2840433344.

Adding to 12053731 its reverse (13735021), we get a palindrome (25788752).

The spelling of 12053731 in words is "twelve million, fifty-three thousand, seven hundred thirty-one".