8242157 has 24 divisors (see below), whose sum is σ = 10674048. Its totient is φ = 6225120.

The previous prime is 8242141. The next prime is 8242159. The reversal of 8242157 is 7512428.

It is not a de Polignac number, because 8242157 - 2⁴ = 8242141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8242159) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31208 + ... + 31470.

It is an arithmetic number, because the mean of its divisors is an integer number (444752).

Almost surely, 2^8242157 is an apocalyptic number.

It is an amenable number.

8242157 is a deficient number, since it is larger than the sum of its proper divisors (2431891).

8242157 is a wasteful number, since it uses less digits than its factorization.

8242157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329 (or 318 counting only the distinct ones).

The product of its digits is 4480, while the sum is 29.

The square root of 8242157 is about 2870.9157075748. The cubic root of 8242157 is about 201.9979495266.

The spelling of 8242157 in words is "eight million, two hundred forty-two thousand, one hundred fifty-seven".