231154560 has 640 divisors, whose sum is σ = 1036728000. Its totient is φ = 48771072.

The previous prime is 231154523. The next prime is 231154579. The reversal of 231154560 is 65451132.

231154560 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (640).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 17781114 + ... + 17781126.

Almost surely, 2^231154560 is an apocalyptic number.

231154560 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 231154560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (518364000).

231154560 is an abundant number, since it is smaller than the sum of its proper divisors (805573440).

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

231154560 is an equidigital number, since it uses as much as digits as its factorization.

231154560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65 (or 30 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 231154560 is about 15203.7679540303. The cubic root of 231154560 is about 613.7160602213.

The spelling of 231154560 in words is "two hundred thirty-one million, one hundred fifty-four thousand, five hundred sixty".