23220153 has 12 divisors (see below), whose sum is σ = 36589488. Its totient is φ = 14072760.

The previous prime is 23220149. The next prime is 23220167. The reversal of 23220153 is 35102232.

It is not a de Polignac number, because 23220153 - 2² = 23220149 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23220653) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117175 + ... + 117372.

It is an arithmetic number, because the mean of its divisors is an integer number (3049124).

Almost surely, 2^23220153 is an apocalyptic number.

It is an amenable number.

23220153 is a deficient number, since it is larger than the sum of its proper divisors (13369335).

23220153 is a wasteful number, since it uses less digits than its factorization.

23220153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234564 (or 234561 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 23220153 is about 4818.7293968431. The cubic root of 23220153 is about 285.2911889975.

Adding to 23220153 its reverse (35102232), we get a palindrome (58322385).

The spelling of 23220153 in words is "twenty-three million, two hundred twenty thousand, one hundred fifty-three".