231344273 has 4 divisors (see below), whose sum is σ = 232354740. Its totient is φ = 230333808.

The previous prime is 231344261. The next prime is 231344291. The reversal of 231344273 is 372443132.

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

It can be written as a sum of positive squares in 2 ways, for example, as 213510544 + 17833729 = 14612^2 + 4223^2 .

It is a cyclic number.

It is not a de Polignac number, because 231344273 - 2²² = 227149969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231344203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 504890 + ... + 505347.

It is an arithmetic number, because the mean of its divisors is an integer number (58088685).

Almost surely, 2^231344273 is an apocalyptic number.

It is an amenable number.

231344273 is a deficient number, since it is larger than the sum of its proper divisors (1010467).

231344273 is a wasteful number, since it uses less digits than its factorization.

231344273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010466.

The product of its digits is 12096, while the sum is 29.

The square root of 231344273 is about 15210.0056870469. The cubic root of 231344273 is about 613.8839105078.

The spelling of 231344273 in words is "two hundred thirty-one million, three hundred forty-four thousand, two hundred seventy-three".