23238145 has 16 divisors (see below), whose sum is σ = 32087808. Its totient is φ = 15825600.

The previous prime is 23238113. The next prime is 23238157. The reversal of 23238145 is 54183232.

It is not a de Polignac number, because 23238145 - 2⁵ = 23238113 is a prime.

It is a super-2 number, since 2×23238145² = 1080022766082050, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian 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, 3087 + ... + 7483.

It is an arithmetic number, because the mean of its divisors is an integer number (2005488).

Almost surely, 2^23238145 is an apocalyptic number.

It is an amenable number.

23238145 is a deficient number, since it is larger than the sum of its proper divisors (8849663).

23238145 is a wasteful number, since it uses less digits than its factorization.

23238145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4560.

The product of its digits is 5760, while the sum is 28.

The square root of 23238145 is about 4820.5959175189. The cubic root of 23238145 is about 285.3648553783.

The spelling of 23238145 in words is "twenty-three million, two hundred thirty-eight thousand, one hundred forty-five".