23031153 has 12 divisors (see below), whose sum is σ = 33642180. Its totient is φ = 15181056.

The previous prime is 23031121. The next prime is 23031157. The reversal of 23031153 is 35113032.

It can be written as a sum of positive squares in 2 ways, for example, as 13593969 + 9437184 = 3687^2 + 3072^2 .

It is not a de Polignac number, because 23031153 - 2⁵ = 23031121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23031157) 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, 13576 + ... + 15177.

It is an arithmetic number, because the mean of its divisors is an integer number (2803515).

Almost surely, 2^23031153 is an apocalyptic number.

It is an amenable number.

23031153 is a deficient number, since it is larger than the sum of its proper divisors (10611027).

23031153 is a wasteful number, since it uses less digits than its factorization.

23031153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28848 (or 28845 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 23031153 is about 4799.0783490166. The cubic root of 23031153 is about 284.5150385911.

Adding to 23031153 its reverse (35113032), we get a palindrome (58144185).

The spelling of 23031153 in words is "twenty-three million, thirty-one thousand, one hundred fifty-three".