23118061 has 4 divisors (see below), whose sum is σ = 23132124. Its totient is φ = 23104000.

The previous prime is 23118037. The next prime is 23118071. The reversal of 23118061 is 16081132.

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 3493161 + 19624900 = 1869^2 + 4430^2 .

It is a 5-Lehmer number, since φ(23118061) divides (23118061-1)⁵.

It is a cyclic number.

It is not a de Polignac number, because 23118061 - 2¹¹ = 23116013 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23118001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4180 + ... + 7981.

It is an arithmetic number, because the mean of its divisors is an integer number (5783031).

Almost surely, 2^23118061 is an apocalyptic number.

It is an amenable number.

23118061 is a deficient number, since it is larger than the sum of its proper divisors (14063).

23118061 is a wasteful number, since it uses less digits than its factorization.

23118061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14062.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 23118061 is about 4808.1244784219. The cubic root of 23118061 is about 284.8724616584.

Adding to 23118061 its reverse (16081132), we get a palindrome (39199193).

The spelling of 23118061 in words is "twenty-three million, one hundred eighteen thousand, sixty-one".