23153445 has 40 divisors (see below), whose sum is σ = 47439744. Its totient is φ = 10583136.

The previous prime is 23153413. The next prime is 23153461. The reversal of 23153445 is 54435132.

23153445 is a `hidden beast` number, since 2 + 315 + 344 + 5 = 666.

It is not a de Polignac number, because 23153445 - 2⁵ = 23153413 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 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 39 ways as a sum of consecutive naturals, for example, 1249 + ... + 6918.

Almost surely, 2^23153445 is an apocalyptic number.

It is an amenable number.

23153445 is an abundant number, since it is smaller than the sum of its proper divisors (24286299).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23153445 is an equidigital number, since it uses as much as digits as its factorization.

23153445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8191 (or 8182 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 23153445 is about 4811.8026767522. The cubic root of 23153445 is about 285.0177274292.

Adding to 23153445 its reverse (54435132), we get a palindrome (77588577).

The spelling of 23153445 in words is "twenty-three million, one hundred fifty-three thousand, four hundred forty-five".