8538157 has 4 divisors (see below), whose sum is σ = 8768956. Its totient is φ = 8307360.

The previous prime is 8538149. The next prime is 8538193. The reversal of 8538157 is 7518358.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8185321 + 352836 = 2861^2 + 594^2 .

It is a cyclic number.

It is not a de Polignac number, because 8538157 - 2³ = 8538149 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 230761 = 8538157 / (8 + 5 + 3 + 8 + 1 + 5 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8538107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115344 + ... + 115417.

It is an arithmetic number, because the mean of its divisors is an integer number (2192239).

Almost surely, 2^8538157 is an apocalyptic number.

It is an amenable number.

8538157 is a deficient number, since it is larger than the sum of its proper divisors (230799).

8538157 is a wasteful number, since it uses less digits than its factorization.

8538157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230798.

The product of its digits is 33600, while the sum is 37.

The square root of 8538157 is about 2922.0124914175. The cubic root of 8538157 is about 204.3876791069.

The spelling of 8538157 in words is "eight million, five hundred thirty-eight thousand, one hundred fifty-seven".