23120559 has 60 divisors (see below), whose sum is σ = 43515472. Its totient is φ = 11975040.

The previous prime is 23120557. The next prime is 23120599. The reversal of 23120559 is 95502132.

It is not a de Polignac number, because 23120559 - 2¹ = 23120557 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23120551) 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 59 ways as a sum of consecutive naturals, for example, 68439 + ... + 68775.

Almost surely, 2^23120559 is an apocalyptic number.

23120559 is a deficient number, since it is larger than the sum of its proper divisors (20394913).

23120559 is a wasteful number, since it uses less digits than its factorization.

23120559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378 (or 358 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 23120559 is about 4808.3842400540. The cubic root of 23120559 is about 284.8827218295.

The spelling of 23120559 in words is "twenty-three million, one hundred twenty thousand, five hundred fifty-nine".