187130761157 has 2 divisors, whose sum is σ = 187130761158. Its totient is φ = 187130761156.

The previous prime is 187130761109. The next prime is 187130761159. The reversal of 187130761157 is 751167031781.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 181310749636 + 5820011521 = 425806^2 + 76289^2 .

It is a cyclic number.

It is not a de Polignac number, because 187130761157 - 2¹⁰ = 187130760133 is a prime.

Together with 187130761159, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (187130761159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93565380578 + 93565380579.

It is an arithmetic number, because the mean of its divisors is an integer number (93565380579).

Almost surely, 2^187130761157 is an apocalyptic number.

It is an amenable number.

187130761157 is a deficient number, since it is larger than the sum of its proper divisors (1).

187130761157 is an equidigital number, since it uses as much as digits as its factorization.

187130761157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 246960, while the sum is 47.

The spelling of 187130761157 in words is "one hundred eighty-seven billion, one hundred thirty million, seven hundred sixty-one thousand, one hundred fifty-seven".