231763161 has 32 divisors (see below), whose sum is σ = 366592000. Its totient is φ = 127448640.

The previous prime is 231763139. The next prime is 231763199. The reversal of 231763161 is 161367132.

It is not a de Polignac number, because 231763161 - 2⁶ = 231763097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231763061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 128655 + ... + 130443.

It is an arithmetic number, because the mean of its divisors is an integer number (11456000).

Almost surely, 2^231763161 is an apocalyptic number.

231763161 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

231763161 is a deficient number, since it is larger than the sum of its proper divisors (134828839).

231763161 is a wasteful number, since it uses less digits than its factorization.

231763161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2029.

The product of its digits is 4536, while the sum is 30.

The square root of 231763161 is about 15223.7696054558. The cubic root of 231763161 is about 614.2542007141.

The spelling of 231763161 in words is "two hundred thirty-one million, seven hundred sixty-three thousand, one hundred sixty-one".