23105445 has 32 divisors (see below), whose sum is σ = 40569984. Its totient is φ = 11136000.

The previous prime is 23105443. The next prime is 23105471. The reversal of 23105445 is 54450132.

It is not a de Polignac number, because 23105445 - 2¹ = 23105443 is a prime.

23105445 is a modest number, since divided by 5445 gives 2310 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23105441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38145 + ... + 38745.

It is an arithmetic number, because the mean of its divisors is an integer number (1267812).

Almost surely, 2^23105445 is an apocalyptic number.

It is an amenable number.

23105445 is a deficient number, since it is larger than the sum of its proper divisors (17464539).

23105445 is a wasteful number, since it uses less digits than its factorization.

23105445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 23105445 is about 4806.8123533169. The cubic root of 23105445 is about 284.8206319809.

Adding to 23105445 its reverse (54450132), we get a palindrome (77555577).

The spelling of 23105445 in words is "twenty-three million, one hundred five thousand, four hundred forty-five".