231260172 has 192 divisors, whose sum is σ = 687536640. Its totient is φ = 59443200.

The previous prime is 231260167. The next prime is 231260173. The reversal of 231260172 is 271062132.

It is not an unprimeable number, because it can be changed into a prime (231260173) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1336678 + ... + 1336850.

It is an arithmetic number, because the mean of its divisors is an integer number (3580920).

Almost surely, 2^231260172 is an apocalyptic number.

231260172 is a gapful number since it is divisible by the number (22) 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 231260172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (343768320).

231260172 is an abundant number, since it is smaller than the sum of its proper divisors (456276468).

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

231260172 is a wasteful number, since it uses less digits than its factorization.

231260172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264 (or 262 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 231260172 is about 15207.2407753675. The cubic root of 231260172 is about 613.8095127174.

The spelling of 231260172 in words is "two hundred thirty-one million, two hundred sixty thousand, one hundred seventy-two".