8204157 has 12 divisors (see below), whose sum is σ = 12762204. Its totient is φ = 5048640.

The previous prime is 8204113. The next prime is 8204167. The reversal of 8204157 is 7514028.

It can be written as a sum of positive squares in 2 ways, for example, as 881721 + 7322436 = 939^2 + 2706^2 .

It is not a de Polignac number, because 8204157 - 2⁶ = 8204093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8204157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8204167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34944 + ... + 35177.

It is an arithmetic number, because the mean of its divisors is an integer number (1063517).

Almost surely, 2^8204157 is an apocalyptic number.

It is an amenable number.

8204157 is a deficient number, since it is larger than the sum of its proper divisors (4558047).

8204157 is a wasteful number, since it uses less digits than its factorization.

8204157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70140 (or 70137 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 8204157 is about 2864.2899643716. The cubic root of 8204157 is about 201.6870378377.

The spelling of 8204157 in words is "eight million, two hundred four thousand, one hundred fifty-seven".