231155045 has 16 divisors (see below), whose sum is σ = 318530880. Its totient is φ = 159264000.

The previous prime is 231155039. The next prime is 231155053. The reversal of 231155045 is 540551132.

It is not a de Polignac number, because 231155045 - 2⁶ = 231154981 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109556 + ... + 111645.

It is an arithmetic number, because the mean of its divisors is an integer number (19908180).

Almost surely, 2^231155045 is an apocalyptic number.

It is an amenable number.

231155045 is a deficient number, since it is larger than the sum of its proper divisors (87375835).

231155045 is a wasteful number, since it uses less digits than its factorization.

231155045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221236.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 231155045 is about 15203.7839040155. The cubic root of 231155045 is about 613.7164894465.

The spelling of 231155045 in words is "two hundred thirty-one million, one hundred fifty-five thousand, forty-five".