231133497 has 8 divisors (see below), whose sum is σ = 352203456. Its totient is φ = 132076272.

The previous prime is 231133481. The next prime is 231133501. The reversal of 231133497 is 794331132.

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

It is not a de Polignac number, because 231133497 - 2⁴ = 231133481 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (231133447) 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, 5503158 + ... + 5503199.

It is an arithmetic number, because the mean of its divisors is an integer number (44025432).

Almost surely, 2^231133497 is an apocalyptic number.

It is an amenable number.

231133497 is a deficient number, since it is larger than the sum of its proper divisors (121069959).

231133497 is a wasteful number, since it uses less digits than its factorization.

231133497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11006367.

The product of its digits is 13608, while the sum is 33.

The square root of 231133497 is about 15203.0752481200. The cubic root of 231133497 is about 613.6974188787.

The spelling of 231133497 in words is "two hundred thirty-one million, one hundred thirty-three thousand, four hundred ninety-seven".