23516121 has 8 divisors (see below), whose sum is σ = 32022144. Its totient is φ = 15343760.

The previous prime is 23516113. The next prime is 23516131. The reversal of 23516121 is 12161532.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23516121 - 2³ = 23516113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23516131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83250 + ... + 83531.

It is an arithmetic number, because the mean of its divisors is an integer number (4002768).

Almost surely, 2^23516121 is an apocalyptic number.

It is an amenable number.

23516121 is a deficient number, since it is larger than the sum of its proper divisors (8506023).

23516121 is a wasteful number, since it uses less digits than its factorization.

23516121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166831.

The product of its digits is 360, while the sum is 21.

The square root of 23516121 is about 4849.3423265428. The cubic root of 23516121 is about 286.4981984421.

Adding to 23516121 its reverse (12161532), we get a palindrome (35677653).

The spelling of 23516121 in words is "twenty-three million, five hundred sixteen thousand, one hundred twenty-one".