23445045 has 80 divisors (see below), whose sum is σ = 46632432. Its totient is φ = 11197440.

The previous prime is 23445041. The next prime is 23445053. The reversal of 23445045 is 54054432.

It can be written as a sum of positive squares in 8 ways, for example, as 6081156 + 17363889 = 2466^2 + 4167^2 .

It is not a de Polignac number, because 23445045 - 2² = 23445041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23445041) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 321129 + ... + 321201.

Almost surely, 2^23445045 is an apocalyptic number.

It is an amenable number.

23445045 is a deficient number, since it is larger than the sum of its proper divisors (23187387).

23445045 is a wasteful number, since it uses less digits than its factorization.

23445045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 23445045 is about 4842.0083643050. The cubic root of 23445045 is about 286.2092662111.

Adding to 23445045 its reverse (54054432), we get a palindrome (77499477).

The spelling of 23445045 in words is "twenty-three million, four hundred forty-five thousand, forty-five".