23123445 has 16 divisors (see below), whose sum is σ = 37366272. Its totient is φ = 12209600.

The previous prime is 23123393. The next prime is 23123461. The reversal of 23123445 is 54432132.

It is not a de Polignac number, because 23123445 - 2⁶ = 23123381 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6117 + ... + 9146.

It is an arithmetic number, because the mean of its divisors is an integer number (2335392).

Almost surely, 2^23123445 is an apocalyptic number.

It is an amenable number.

23123445 is a deficient number, since it is larger than the sum of its proper divisors (14242827).

23123445 is a wasteful number, since it uses less digits than its factorization.

23123445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15372.

The product of its digits is 2880, while the sum is 24.

The square root of 23123445 is about 4808.6843314986. The cubic root of 23123445 is about 284.8945747339.

Adding to 23123445 its reverse (54432132), we get a palindrome (77555577).

The spelling of 23123445 in words is "twenty-three million, one hundred twenty-three thousand, four hundred forty-five".