231535532 has 12 divisors (see below), whose sum is σ = 406467600. Its totient is φ = 115401936.

The previous prime is 231535519. The next prime is 231535537. The reversal of 231535532 is 235535132.

It is a junction number, because it is equal to n+sod(n) for n = 231535495 and 231535504.

It is not an unprimeable number, because it can be changed into a prime (231535537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90032 + ... + 92567.

It is an arithmetic number, because the mean of its divisors is an integer number (33872300).

Almost surely, 2^231535532 is an apocalyptic number.

It is an amenable number.

231535532 is a deficient number, since it is larger than the sum of its proper divisors (174932068).

231535532 is a wasteful number, since it uses less digits than its factorization.

231535532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182920 (or 182918 counting only the distinct ones).

The product of its digits is 13500, while the sum is 29.

The square root of 231535532 is about 15216.2916638713. The cubic root of 231535532 is about 614.0530357693.

The spelling of 231535532 in words is "two hundred thirty-one million, five hundred thirty-five thousand, five hundred thirty-two".