23055145 has 32 divisors (see below), whose sum is σ = 31104000. Its totient is φ = 16321536.

The previous prime is 23055139. The next prime is 23055157. The reversal of 23055145 is 54155032.

It is a cyclic number.

It is not a de Polignac number, because 23055145 - 2¹⁹ = 22530857 is a prime.

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, 115756 + ... + 115954.

It is an arithmetic number, because the mean of its divisors is an integer number (972000).

Almost surely, 2^23055145 is an apocalyptic number.

It is an amenable number.

23055145 is a deficient number, since it is larger than the sum of its proper divisors (8048855).

23055145 is a wasteful number, since it uses less digits than its factorization.

23055145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 23055145 is about 4801.5773449982. The cubic root of 23055145 is about 284.6137992551.

The spelling of 23055145 in words is "twenty-three million, fifty-five thousand, one hundred forty-five".