13924157 has 8 divisors (see below), whose sum is σ = 15074136. Its totient is φ = 12785472.

The previous prime is 13924151. The next prime is 13924159. The reversal of 13924157 is 75142931.

It can be written as a sum of positive squares in 4 ways, for example, as 3818116 + 10106041 = 1954^2 + 3179^2 .

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 13924157 - 2¹² = 13920061 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 (13924151) 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, 158 + ... + 5279.

It is an arithmetic number, because the mean of its divisors is an integer number (1884267).

Almost surely, 2^13924157 is an apocalyptic number.

It is an amenable number.

13924157 is a deficient number, since it is larger than the sum of its proper divisors (1149979).

13924157 is a wasteful number, since it uses less digits than its factorization.

13924157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5647.

The product of its digits is 7560, while the sum is 32.

The square root of 13924157 is about 3731.5086761255. The cubic root of 13924157 is about 240.5782180825.

The spelling of 13924157 in words is "thirteen million, nine hundred twenty-four thousand, one hundred fifty-seven".