23130133 has 4 divisors (see below), whose sum is σ = 24909388. Its totient is φ = 21350880.

The previous prime is 23130131. The next prime is 23130137. The reversal of 23130133 is 33103132.

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 7273809 + 15856324 = 2697^2 + 3982^2 .

It is a cyclic number.

It is not a de Polignac number, because 23130133 - 2¹ = 23130131 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23130131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 889608 + ... + 889633.

It is an arithmetic number, because the mean of its divisors is an integer number (6227347).

Almost surely, 2^23130133 is an apocalyptic number.

It is an amenable number.

23130133 is a deficient number, since it is larger than the sum of its proper divisors (1779255).

23130133 is a wasteful number, since it uses less digits than its factorization.

23130133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1779254.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 23130133 is about 4809.3796897313. The cubic root of 23130133 is about 284.9220387969.

Adding to 23130133 its reverse (33103132), we get a palindrome (56233265).

The spelling of 23130133 in words is "twenty-three million, one hundred thirty thousand, one hundred thirty-three".