231589050169 has 9 divisors (see below), whose sum is σ = 233206083621. Its totient is φ = 229983162300.

The previous prime is 231589050167. The next prime is 231589050223. The reversal of 231589050169 is 961050985132.

The square root of 231589050169 is 481237.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 231589050169 - 2¹ = 231589050167 is a prime.

It is a super-2 number, since 2×231589050169² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231589050167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 72665194 + ... + 72668380.

It is an arithmetic number, because the mean of its divisors is an integer number (25911787069).

Almost surely, 2^231589050169 is an apocalyptic number.

231589050169 is the 481237-th square number.

231589050169 is the 240619-th centered octagonal number.

It is an amenable number.

231589050169 is a deficient number, since it is larger than the sum of its proper divisors (1617033452).

231589050169 is an frugal number, since it uses more digits than its factorization.

231589050169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6676 (or 3338 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 49.

Multiplying 231589050169 by its sum of digits (49), we get a square (11347863458281 = 3368659²).

The spelling of 231589050169 in words is "two hundred thirty-one billion, five hundred eighty-nine million, fifty thousand, one hundred sixty-nine".