23031045 has 12 divisors (see below), whose sum is σ = 39920556. Its totient is φ = 12283200.

The previous prime is 23030999. The next prime is 23031061. The reversal of 23031045 is 54013032.

It can be written as a sum of positive squares in 2 ways, for example, as 17791524 + 5239521 = 4218^2 + 2289^2 .

It is not a de Polignac number, because 23031045 - 2⁸ = 23030789 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 255856 + ... + 255945.

It is an arithmetic number, because the mean of its divisors is an integer number (3326713).

Almost surely, 2^23031045 is an apocalyptic number.

It is an amenable number.

23031045 is a deficient number, since it is larger than the sum of its proper divisors (16889511).

23031045 is a wasteful number, since it uses less digits than its factorization.

23031045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511812 (or 511809 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 23031045 is about 4799.0670968429. The cubic root of 23031045 is about 284.5145938649.

Adding to 23031045 its reverse (54013032), we get a palindrome (77044077).

The spelling of 23031045 in words is "twenty-three million, thirty-one thousand, forty-five".