231153643 has 8 divisors (see below), whose sum is σ = 264837600. Its totient is φ = 197635200.

The previous prime is 231153623. The next prime is 231153649. The reversal of 231153643 is 346351132.

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

It is not a de Polignac number, because 231153643 - 2¹³ = 231145451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231153649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38368 + ... + 43981.

It is an arithmetic number, because the mean of its divisors is an integer number (33104700).

Almost surely, 2^231153643 is an apocalyptic number.

231153643 is a deficient number, since it is larger than the sum of its proper divisors (33683957).

231153643 is an equidigital number, since it uses as much as digits as its factorization.

231153643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82757.

The product of its digits is 6480, while the sum is 28.

The square root of 231153643 is about 15203.7377970024. The cubic root of 231153643 is about 613.7152486743.

The spelling of 231153643 in words is "two hundred thirty-one million, one hundred fifty-three thousand, six hundred forty-three".