231042045 has 32 divisors (see below), whose sum is σ = 402079104. Its totient is φ = 112608000.

The previous prime is 231042041. The next prime is 231042059. The reversal of 231042045 is 540240132.

It is not a de Polignac number, because 231042045 - 2² = 231042041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231042041) 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 31 ways as a sum of consecutive naturals, for example, 13830 + ... + 25560.

It is an arithmetic number, because the mean of its divisors is an integer number (12564972).

Almost surely, 2^231042045 is an apocalyptic number.

It is an amenable number.

231042045 is a deficient number, since it is larger than the sum of its proper divisors (171037059).

231042045 is a wasteful number, since it uses less digits than its factorization.

231042045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11853.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 231042045 is about 15200.0672695880. The cubic root of 231042045 is about 613.6164681715.

Adding to 231042045 its reverse (540240132), we get a palindrome (771282177).

The spelling of 231042045 in words is "two hundred thirty-one million, forty-two thousand, forty-five".