231301153 has 2 divisors, whose sum is σ = 231301154. Its totient is φ = 231301152.

The previous prime is 231301139. The next prime is 231301223. The reversal of 231301153 is 351103132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 153561664 + 77739489 = 12392^2 + 8817^2 .

It is a cyclic number.

It is not a de Polignac number, because 231301153 - 2²⁵ = 197746721 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231301153.

It is not a weakly prime, because it can be changed into another prime (231301123) 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 as a sum of consecutive naturals, namely, 115650576 + 115650577.

It is an arithmetic number, because the mean of its divisors is an integer number (115650577).

Almost surely, 2^231301153 is an apocalyptic number.

It is an amenable number.

231301153 is a deficient number, since it is larger than the sum of its proper divisors (1).

231301153 is an equidigital number, since it uses as much as digits as its factorization.

231301153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 231301153 is about 15208.5881330254. The cubic root of 231301153 is about 613.8457677596.

Adding to 231301153 its reverse (351103132), we get a palindrome (582404285).

The spelling of 231301153 in words is "two hundred thirty-one million, three hundred one thousand, one hundred fifty-three".