231274813 has 8 divisors (see below), whose sum is σ = 288342720. Its totient is φ = 180214080.

The previous prime is 231274811. The next prime is 231274819. The reversal of 231274813 is 318472132.

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

It is a cyclic number.

It is not a de Polignac number, because 231274813 - 2¹ = 231274811 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231274811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1501708 + ... + 1501861.

It is an arithmetic number, because the mean of its divisors is an integer number (36042840).

Almost surely, 2^231274813 is an apocalyptic number.

It is an amenable number.

231274813 is a deficient number, since it is larger than the sum of its proper divisors (57067907).

231274813 is a wasteful number, since it uses less digits than its factorization.

231274813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3003587.

The product of its digits is 8064, while the sum is 31.

The square root of 231274813 is about 15207.7221502762. The cubic root of 231274813 is about 613.8224657987.

The spelling of 231274813 in words is "two hundred thirty-one million, two hundred seventy-four thousand, eight hundred thirteen".