231015152 has 20 divisors (see below), whose sum is σ = 457116576. Its totient is φ = 113049600.

The previous prime is 231015121. The next prime is 231015157. The reversal of 231015152 is 251510132.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231015157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152849 + ... + 154352.

Almost surely, 2^231015152 is an apocalyptic number.

It is an amenable number.

231015152 is a deficient number, since it is larger than the sum of its proper divisors (226101424).

231015152 is a wasteful number, since it uses less digits than its factorization.

231015152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307256 (or 307250 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 231015152 is about 15199.1826096011. The cubic root of 231015152 is about 613.5926591891.

Adding to 231015152 its reverse (251510132), we get a palindrome (482525284).

The spelling of 231015152 in words is "two hundred thirty-one million, fifteen thousand, one hundred fifty-two".