231061152 has 96 divisors (see below), whose sum is σ = 711994752. Its totient is φ = 64226304.

The previous prime is 231061141. The next prime is 231061211. The reversal of 231061152 is 251160132.

231061152 is digitally balanced in base 2, 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 (96).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20218 + ... + 29510.

It is an arithmetic number, because the mean of its divisors is an integer number (7416612).

Almost surely, 2^231061152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231061152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (355997376).

231061152 is an abundant number, since it is smaller than the sum of its proper divisors (480933600).

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

231061152 is a wasteful number, since it uses less digits than its factorization.

231061152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9350 (or 9342 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 231061152 is about 15200.6957735493. The cubic root of 231061152 is about 613.6333829091.

The spelling of 231061152 in words is "two hundred thirty-one million, sixty-one thousand, one hundred fifty-two".