23642145 has 32 divisors (see below), whose sum is σ = 42624000. Its totient is φ = 12431232.

The previous prime is 23642123. The next prime is 23642153. The reversal of 23642145 is 54124632.

23642145 is a `hidden beast` number, since 2 + 3 + 642 + 14 + 5 = 666.

It is not a de Polignac number, because 23642145 - 2⁹ = 23641633 is a prime.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8656 + ... + 11054.

It is an arithmetic number, because the mean of its divisors is an integer number (1332000).

Almost surely, 2^23642145 is an apocalyptic number.

It is an amenable number.

23642145 is a deficient number, since it is larger than the sum of its proper divisors (18981855).

23642145 is a wasteful number, since it uses less digits than its factorization.

23642145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2486 (or 2480 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 23642145 is about 4862.3188912288. The cubic root of 23642145 is about 287.0090727059.

Adding to 23642145 its reverse (54124632), we get a palindrome (77766777).

The spelling of 23642145 in words is "twenty-three million, six hundred forty-two thousand, one hundred forty-five".