231015045 has 8 divisors (see below), whose sum is σ = 369624096. Its totient is φ = 123208016.

The previous prime is 231015019. The next prime is 231015067. The reversal of 231015045 is 540510132.

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

It is a cyclic number.

It is not a de Polignac number, because 231015045 - 2⁸ = 231014789 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7700487 + ... + 7700516.

It is an arithmetic number, because the mean of its divisors is an integer number (46203012).

Almost surely, 2^231015045 is an apocalyptic number.

It is an amenable number.

231015045 is a deficient number, since it is larger than the sum of its proper divisors (138609051).

231015045 is a wasteful number, since it uses less digits than its factorization.

231015045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15401011.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 231015045 is about 15199.1790896745. The cubic root of 231015045 is about 613.5925644558.

Adding to 231015045 its reverse (540510132), we get a palindrome (771525177).

The spelling of 231015045 in words is "two hundred thirty-one million, fifteen thousand, forty-five".