108687082157 has 2 divisors, whose sum is σ = 108687082158. Its totient is φ = 108687082156.

The previous prime is 108687082109. The next prime is 108687082171. The reversal of 108687082157 is 751280786801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103255539556 + 5431542601 = 321334^2 + 73699^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108687082157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 108687082099 and 108687082108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108687082187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54343541078 + 54343541079.

It is an arithmetic number, because the mean of its divisors is an integer number (54343541079).

Almost surely, 2^108687082157 is an apocalyptic number.

It is an amenable number.

108687082157 is a deficient number, since it is larger than the sum of its proper divisors (1).

108687082157 is an equidigital number, since it uses as much as digits as its factorization.

108687082157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1505280, while the sum is 53.

The spelling of 108687082157 in words is "one hundred eight billion, six hundred eighty-seven million, eighty-two thousand, one hundred fifty-seven".