8102982157 has 2 divisors, whose sum is σ = 8102982158. Its totient is φ = 8102982156.

The previous prime is 8102982101. The next prime is 8102982169. The reversal of 8102982157 is 7512892018.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6836974596 + 1266007561 = 82686^2 + 35581^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8102982157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8102982197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4051491078 + 4051491079.

It is an arithmetic number, because the mean of its divisors is an integer number (4051491079).

Almost surely, 2^8102982157 is an apocalyptic number.

It is an amenable number.

8102982157 is a deficient number, since it is larger than the sum of its proper divisors (1).

8102982157 is an equidigital number, since it uses as much as digits as its factorization.

8102982157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 43.

The square root of 8102982157 is about 90016.5660142621. The cubic root of 8102982157 is about 2008.5452834824.

The spelling of 8102982157 in words is "eight billion, one hundred two million, nine hundred eighty-two thousand, one hundred fifty-seven".