231266513 has 8 divisors (see below), whose sum is σ = 240179808. Its totient is φ = 222513984.

The previous prime is 231266509. The next prime is 231266543. The reversal of 231266513 is 315662132.

231266513 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 a cyclic number.

It is not a de Polignac number, because 231266513 - 2² = 231266509 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231266543) 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, 37256 + ... + 43017.

It is an arithmetic number, because the mean of its divisors is an integer number (30022476).

Almost surely, 2^231266513 is an apocalyptic number.

It is an amenable number.

231266513 is a deficient number, since it is larger than the sum of its proper divisors (8913295).

231266513 is an equidigital number, since it uses as much as digits as its factorization.

231266513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80383.

The product of its digits is 6480, while the sum is 29.

The square root of 231266513 is about 15207.4492601488. The cubic root of 231266513 is about 613.8151227489.

The spelling of 231266513 in words is "two hundred thirty-one million, two hundred sixty-six thousand, five hundred thirteen".