231134045 has 4 divisors (see below), whose sum is σ = 277360860. Its totient is φ = 184907232.

The previous prime is 231134027. The next prime is 231134087. The reversal of 231134045 is 540431132.

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 55995289 + 175138756 = 7483^2 + 13234^2 .

It is a cyclic number.

It is not a de Polignac number, because 231134045 - 2¹² = 231129949 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231134045.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23113400 + ... + 23113409.

It is an arithmetic number, because the mean of its divisors is an integer number (69340215).

Almost surely, 2^231134045 is an apocalyptic number.

It is an amenable number.

231134045 is a deficient number, since it is larger than the sum of its proper divisors (46226815).

231134045 is an equidigital number, since it uses as much as digits as its factorization.

231134045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46226814.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 231134045 is about 15203.0932707788. The cubic root of 231134045 is about 613.6979038883.

Adding to 231134045 its reverse (540431132), we get a palindrome (771565177).

The spelling of 231134045 in words is "two hundred thirty-one million, one hundred thirty-four thousand, forty-five".