23748121 has 4 divisors (see below), whose sum is σ = 24780672. Its totient is φ = 22715572.

The previous prime is 23748107. The next prime is 23748161. The reversal of 23748121 is 12184732.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23748121 - 2⁷ = 23747993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23748121.

It is not an unprimeable number, because it can be changed into a prime (23748161) 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 3 ways as a sum of consecutive naturals, for example, 516241 + ... + 516286.

It is an arithmetic number, because the mean of its divisors is an integer number (6195168).

Almost surely, 2^23748121 is an apocalyptic number.

It is an amenable number.

23748121 is a deficient number, since it is larger than the sum of its proper divisors (1032551).

23748121 is a wasteful number, since it uses less digits than its factorization.

23748121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032550.

The product of its digits is 2688, while the sum is 28.

The square root of 23748121 is about 4873.2043872590. The cubic root of 23748121 is about 287.4372732718.

The spelling of 23748121 in words is "twenty-three million, seven hundred forty-eight thousand, one hundred twenty-one".