12073731 has 4 divisors (see below), whose sum is σ = 16098312. Its totient is φ = 8049152.

The previous prime is 12073717. The next prime is 12073739. The reversal of 12073731 is 13737021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13737021 = 3 ⋅4579007.

It is a cyclic number.

It is not a de Polignac number, because 12073731 - 2¹⁴ = 12057347 is a prime.

It is a super-2 number, since 2×12073731² = 291549960520722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12073739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2012286 + ... + 2012291.

It is an arithmetic number, because the mean of its divisors is an integer number (4024578).

Almost surely, 2^12073731 is an apocalyptic number.

12073731 is a deficient number, since it is larger than the sum of its proper divisors (4024581).

12073731 is an equidigital number, since it uses as much as digits as its factorization.

12073731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4024580.

The product of its (nonzero) digits is 882, while the sum is 24.

The square root of 12073731 is about 3474.7274713278. The cubic root of 12073731 is about 229.4107854736.

The spelling of 12073731 in words is "twelve million, seventy-three thousand, seven hundred thirty-one".