231253361 has 4 divisors (see below), whose sum is σ = 231338724. Its totient is φ = 231168000.

The previous prime is 231253349. The next prime is 231253369. The reversal of 231253361 is 163352132.

231253361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 157979761 + 73273600 = 12569^2 + 8560^2 .

It is a cyclic number.

It is not a de Polignac number, because 231253361 - 2¹⁴ = 231236977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231253361.

It is not an unprimeable number, because it can be changed into a prime (231253369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38480 + ... + 44081.

It is an arithmetic number, because the mean of its divisors is an integer number (57834681).

Almost surely, 2^231253361 is an apocalyptic number.

It is an amenable number.

231253361 is a deficient number, since it is larger than the sum of its proper divisors (85363).

231253361 is an equidigital number, since it uses as much as digits as its factorization.

231253361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85362.

The product of its digits is 3240, while the sum is 26.

The square root of 231253361 is about 15207.0168343433. The cubic root of 231253361 is about 613.8034867516.

The spelling of 231253361 in words is "two hundred thirty-one million, two hundred fifty-three thousand, three hundred sixty-one".