231033155 has 8 divisors (see below), whose sum is σ = 284001984. Its totient is φ = 180318400.

The previous prime is 231033149. The next prime is 231033161. The reversal of 231033155 is 551330132.

It is an interprime number because it is at equal distance from previous prime (231033149) and next prime (231033161).

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

It is a de Polignac number, because none of the positive numbers 2^k-231033155 is a prime.

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 231033155.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 563291 + ... + 563700.

It is an arithmetic number, because the mean of its divisors is an integer number (35500248).

Almost surely, 2^231033155 is an apocalyptic number.

231033155 is a deficient number, since it is larger than the sum of its proper divisors (52968829).

231033155 is a wasteful number, since it uses less digits than its factorization.

231033155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1127037.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 231033155 is about 15199.7748338586. The cubic root of 231033155 is about 613.6085978574.

Adding to 231033155 its reverse (551330132), we get a palindrome (782363287).

The spelling of 231033155 in words is "two hundred thirty-one million, thirty-three thousand, one hundred fifty-five".