23493145 has 8 divisors (see below), whose sum is σ = 30360456. Its totient is φ = 17348736.

The previous prime is 23493131. The next prime is 23493149. The reversal of 23493145 is 54139432.

It can be written as a sum of positive squares in 4 ways, for example, as 797449 + 22695696 = 893^2 + 4764^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 23493145 - 2⁷ = 23493017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23493149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180652 + ... + 180781.

It is an arithmetic number, because the mean of its divisors is an integer number (3795057).

Almost surely, 2^23493145 is an apocalyptic number.

It is an amenable number.

23493145 is a deficient number, since it is larger than the sum of its proper divisors (6867311).

23493145 is a wasteful number, since it uses less digits than its factorization.

23493145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361451.

The product of its digits is 12960, while the sum is 31.

The square root of 23493145 is about 4846.9727665833. The cubic root of 23493145 is about 286.4048620797.

The spelling of 23493145 in words is "twenty-three million, four hundred ninety-three thousand, one hundred forty-five".