23148145 has 4 divisors (see below), whose sum is σ = 27777780. Its totient is φ = 18518512.

The previous prime is 23148131. The next prime is 23148161. The reversal of 23148145 is 54184132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15178816 + 7969329 = 3896^2 + 2823^2 .

It is a cyclic number.

It is not a de Polignac number, because 23148145 - 2⁵ = 23148113 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2314810 + ... + 2314819.

It is an arithmetic number, because the mean of its divisors is an integer number (6944445).

Almost surely, 2^23148145 is an apocalyptic number.

It is an amenable number.

23148145 is a deficient number, since it is larger than the sum of its proper divisors (4629635).

23148145 is an equidigital number, since it uses as much as digits as its factorization.

23148145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4629634.

The product of its digits is 3840, while the sum is 28.

The square root of 23148145 is about 4811.2519160817. The cubic root of 23148145 is about 284.9959781930.

The spelling of 23148145 in words is "twenty-three million, one hundred forty-eight thousand, one hundred forty-five".