12275731 has 8 divisors (see below), whose sum is σ = 13388480. Its totient is φ = 11187072.

The previous prime is 12275719. The next prime is 12275741. The reversal of 12275731 is 13757221.

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

It is not a de Polignac number, because 12275731 - 2¹¹ = 12273683 is a prime.

It is a super-2 number, since 2×12275731² = 301387143168722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12275731.

It is not an unprimeable number, because it can be changed into a prime (12275741) 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 7 ways as a sum of consecutive naturals, for example, 4950 + ... + 7003.

It is an arithmetic number, because the mean of its divisors is an integer number (1673560).

Almost surely, 2^12275731 is an apocalyptic number.

12275731 is a deficient number, since it is larger than the sum of its proper divisors (1112749).

12275731 is a wasteful number, since it uses less digits than its factorization.

12275731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12045.

The product of its digits is 2940, while the sum is 28.

The square root of 12275731 is about 3503.6739288924. The cubic root of 12275731 is about 230.6831046327.

The spelling of 12275731 in words is "twelve million, two hundred seventy-five thousand, seven hundred thirty-one".