23120539 has 8 divisors (see below), whose sum is σ = 24940832. Its totient is φ = 21306240.

The previous prime is 23120501. The next prime is 23120551. The reversal of 23120539 is 93502132.

It is a happy number.

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 23120539 - 2²³ = 14731931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23120599) 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, 9619 + ... + 11779.

It is an arithmetic number, because the mean of its divisors is an integer number (3117604).

Almost surely, 2^23120539 is an apocalyptic number.

23120539 is a deficient number, since it is larger than the sum of its proper divisors (1820293).

23120539 is a wasteful number, since it uses less digits than its factorization.

23120539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2997.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 23120539 is about 4808.3821603529. The cubic root of 23120539 is about 284.8826396853.

The spelling of 23120539 in words is "twenty-three million, one hundred twenty thousand, five hundred thirty-nine".