23213275 has 12 divisors (see below), whose sum is σ = 28848600. Its totient is φ = 18529280.

The previous prime is 23213273. The next prime is 23213291. The reversal of 23213275 is 57231232.

It is not a de Polignac number, because 23213275 - 2¹ = 23213273 is a prime.

It is a super-2 number, since 2×23213275² = 1077712272451250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (23213273) 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 11 ways as a sum of consecutive naturals, for example, 15771 + ... + 17179.

It is an arithmetic number, because the mean of its divisors is an integer number (2404050).

Almost surely, 2^23213275 is an apocalyptic number.

23213275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

23213275 is a deficient number, since it is larger than the sum of its proper divisors (5635325).

23213275 is a wasteful number, since it uses less digits than its factorization.

23213275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2078 (or 2073 counting only the distinct ones).

The product of its digits is 2520, while the sum is 25.

The square root of 23213275 is about 4818.0156703772. The cubic root of 23213275 is about 285.2630176849.

The spelling of 23213275 in words is "twenty-three million, two hundred thirteen thousand, two hundred seventy-five".