23994157 has 8 divisors (see below), whose sum is σ = 27715392. Its totient is φ = 20529600.

The previous prime is 23994149. The next prime is 23994163. The reversal of 23994157 is 75149932.

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 23994157 - 2³ = 23994149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23994137) 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, 63969 + ... + 64342.

It is an arithmetic number, because the mean of its divisors is an integer number (3464424).

Almost surely, 2^23994157 is an apocalyptic number.

It is an amenable number.

23994157 is a deficient number, since it is larger than the sum of its proper divisors (3721235).

23994157 is a wasteful number, since it uses less digits than its factorization.

23994157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128339.

The product of its digits is 68040, while the sum is 40.

The square root of 23994157 is about 4898.3831005751. The cubic root of 23994157 is about 288.4265036498.

It can be divided in two parts, 2399 and 4157, that added together give a palindrome (6556).

The spelling of 23994157 in words is "twenty-three million, nine hundred ninety-four thousand, one hundred fifty-seven".