231698160 has 120 divisors (see below), whose sum is σ = 819121680. Its totient is φ = 58530816.

The previous prime is 231698149. The next prime is 231698161. The reversal of 231698160 is 61896132.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231698161) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5212 + ... + 22148.

It is an arithmetic number, because the mean of its divisors is an integer number (6826014).

Almost surely, 2^231698160 is an apocalyptic number.

231698160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231698160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (409560840).

231698160 is an abundant number, since it is smaller than the sum of its proper divisors (587423520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231698160 is a wasteful number, since it uses less digits than its factorization.

231698160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16975 (or 16966 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 231698160 is about 15221.6346034189. The cubic root of 231698160 is about 614.1967701451.

It can be divided in two parts, 23169 and 8160, that added together give a square (31329 = 177²).

The spelling of 231698160 in words is "two hundred thirty-one million, six hundred ninety-eight thousand, one hundred sixty".