230931553 has 8 divisors (see below), whose sum is σ = 252947880. Its totient is φ = 209852160.

The previous prime is 230931511. The next prime is 230931577. The reversal of 230931553 is 355139032.

It can be written as a sum of positive squares in 4 ways, for example, as 19607184 + 211324369 = 4428^2 + 14537^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 230931553 - 2²¹ = 228834401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230931353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233718 + ... + 234703.

It is an arithmetic number, because the mean of its divisors is an integer number (31618485).

Almost surely, 2^230931553 is an apocalyptic number.

It is an amenable number.

230931553 is a deficient number, since it is larger than the sum of its proper divisors (22016327).

230931553 is a wasteful number, since it uses less digits than its factorization.

230931553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468467.

The product of its (nonzero) digits is 12150, while the sum is 31.

The square root of 230931553 is about 15196.4322457608. The cubic root of 230931553 is about 613.5186352977.

The spelling of 230931553 in words is "two hundred thirty million, nine hundred thirty-one thousand, five hundred fifty-three".