231552036 has 36 divisors (see below), whose sum is σ = 619743852. Its totient is φ = 72643584.

The previous prime is 231552001. The next prime is 231552047. The reversal of 231552036 is 630255132.

It can be written as a sum of positive squares in 2 ways, for example, as 174398436 + 57153600 = 13206^2 + 7560^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-4 number, since 4×231552036⁴ (a number of 35 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 188565 + ... + 189788.

It is an arithmetic number, because the mean of its divisors is an integer number (17215107).

Almost surely, 2^231552036 is an apocalyptic number.

It is an amenable number.

231552036 is an abundant number, since it is smaller than the sum of its proper divisors (388191816).

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

231552036 is a wasteful number, since it uses less digits than its factorization.

231552036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378380 (or 378375 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 231552036 is about 15216.8339676820. The cubic root of 231552036 is about 614.0676254530.

The spelling of 231552036 in words is "two hundred thirty-one million, five hundred fifty-two thousand, thirty-six".