23680155 has 16 divisors (see below), whose sum is σ = 37949184. Its totient is φ = 12609120.

The previous prime is 23680127. The next prime is 23680159. The reversal of 23680155 is 55108632.

It is not a de Polignac number, because 23680155 - 2⁶ = 23680091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23680159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15642 + ... + 17088.

It is an arithmetic number, because the mean of its divisors is an integer number (2371824).

Almost surely, 2^23680155 is an apocalyptic number.

23680155 is a deficient number, since it is larger than the sum of its proper divisors (14269029).

23680155 is a wasteful number, since it uses less digits than its factorization.

23680155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2546.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 23680155 is about 4866.2259503644. The cubic root of 23680155 is about 287.1628006317.

Adding to 23680155 its reverse (55108632), we get a palindrome (78788787).

The spelling of 23680155 in words is "twenty-three million, six hundred eighty thousand, one hundred fifty-five".