23140105 has 16 divisors (see below), whose sum is σ = 28813824. Its totient is φ = 17821440.

The previous prime is 23140087. The next prime is 23140109. The reversal of 23140105 is 50104132.

It is not a de Polignac number, because 23140105 - 2¹¹ = 23138057 is a prime.

It is a super-2 number, since 2×23140105² = 1070928918822050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23140109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52014 + ... + 52456.

It is an arithmetic number, because the mean of its divisors is an integer number (1800864).

Almost surely, 2^23140105 is an apocalyptic number.

It is an amenable number.

23140105 is a deficient number, since it is larger than the sum of its proper divisors (5673719).

23140105 is a wasteful number, since it uses less digits than its factorization.

23140105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 23140105 is about 4810.4163021510. The cubic root of 23140105 is about 284.9629786733.

Adding to 23140105 its reverse (50104132), we get a palindrome (73244237).

The spelling of 23140105 in words is "twenty-three million, one hundred forty thousand, one hundred five".