187430137 has 2 divisors, whose sum is σ = 187430138. Its totient is φ = 187430136.

The previous prime is 187430119. The next prime is 187430141. The reversal of 187430137 is 731034781.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127893481 + 59536656 = 11309^2 + 7716^2 .

It is a cyclic number.

It is not a de Polignac number, because 187430137 - 2¹¹ = 187428089 is a prime.

It is not a weakly prime, because it can be changed into another prime (187430167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93715068 + 93715069.

It is an arithmetic number, because the mean of its divisors is an integer number (93715069).

Almost surely, 2^187430137 is an apocalyptic number.

It is an amenable number.

187430137 is a deficient number, since it is larger than the sum of its proper divisors (1).

187430137 is an equidigital number, since it uses as much as digits as its factorization.

187430137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 187430137 is about 13690.5126638852. The cubic root of 187430137 is about 572.2860251825.

The spelling of 187430137 in words is "one hundred eighty-seven million, four hundred thirty thousand, one hundred thirty-seven".