23123645 has 8 divisors (see below), whose sum is σ = 27807840. Its totient is φ = 18459280.

The previous prime is 23123563. The next prime is 23123657. The reversal of 23123645 is 54632132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23123645 - 2¹⁴ = 23107261 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2255 + ... + 7164.

It is an arithmetic number, because the mean of its divisors is an integer number (3475980).

Almost surely, 2^23123645 is an apocalyptic number.

It is an amenable number.

23123645 is a deficient number, since it is larger than the sum of its proper divisors (4684195).

23123645 is an equidigital number, since it uses as much as digits as its factorization.

23123645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9915.

The product of its digits is 4320, while the sum is 26.

The square root of 23123645 is about 4808.7051271626. The cubic root of 23123645 is about 284.8953961045.

Adding to 23123645 its reverse (54632132), we get a palindrome (77755777).

The spelling of 23123645 in words is "twenty-three million, one hundred twenty-three thousand, six hundred forty-five".