231598855 has 4 divisors (see below), whose sum is σ = 277918632. Its totient is φ = 185279080.

The previous prime is 231598853. The next prime is 231598859. The reversal of 231598855 is 558895132.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 231598855 - 2¹ = 231598853 is a prime.

It is a super-2 number, since 2×231598855² = 107276059274622050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231598853) 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, 23159881 + ... + 23159890.

It is an arithmetic number, because the mean of its divisors is an integer number (69479658).

Almost surely, 2^231598855 is an apocalyptic number.

231598855 is a deficient number, since it is larger than the sum of its proper divisors (46319777).

231598855 is an equidigital number, since it uses as much as digits as its factorization.

231598855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46319776.

The product of its digits is 432000, while the sum is 46.

The square root of 231598855 is about 15218.3722848405. The cubic root of 231598855 is about 614.1090100955.

The spelling of 231598855 in words is "two hundred thirty-one million, five hundred ninety-eight thousand, eight hundred fifty-five".