23133501 has 6 divisors (see below), whose sum is σ = 33415070. Its totient is φ = 15422328.

The previous prime is 23133497. The next prime is 23133563. The reversal of 23133501 is 10533132.

23133501 is a `hidden beast` number, since 2 + 313 + 350 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 18071001 + 5062500 = 4251^2 + 2250^2 .

It is not a de Polignac number, because 23133501 - 2² = 23133497 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23133301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1285186 + ... + 1285203.

Almost surely, 2^23133501 is an apocalyptic number.

It is an amenable number.

23133501 is a deficient number, since it is larger than the sum of its proper divisors (10281569).

23133501 is a wasteful number, since it uses less digits than its factorization.

23133501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2570395 (or 2570392 counting only the distinct ones).

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

The square root of 23133501 is about 4809.7298260921. The cubic root of 23133501 is about 284.9358673793.

Adding to 23133501 its reverse (10533132), we get a palindrome (33666633).

The spelling of 23133501 in words is "twenty-three million, one hundred thirty-three thousand, five hundred one".