231395262 has 128 divisors (see below), whose sum is σ = 606735360. Its totient is φ = 57231360.

The previous prime is 231395261. The next prime is 231395303. The reversal of 231395262 is 262593132.

231395262 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231395261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 501712 + ... + 502172.

It is an arithmetic number, because the mean of its divisors is an integer number (4740120).

Almost surely, 2^231395262 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231395262, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303367680).

231395262 is an abundant number, since it is smaller than the sum of its proper divisors (375340098).

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

231395262 is a wasteful number, since it uses less digits than its factorization.

231395262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546.

The product of its digits is 19440, while the sum is 33.

The square root of 231395262 is about 15211.6817610677. The cubic root of 231395262 is about 613.9290078382.

It can be divided in two parts, 23 and 1395262, that added together give a triangular number (1395285 = T₁₆₇₀).

The spelling of 231395262 in words is "two hundred thirty-one million, three hundred ninety-five thousand, two hundred sixty-two".