187012157 has 2 divisors, whose sum is σ = 187012158. Its totient is φ = 187012156.

The previous prime is 187012151. The next prime is 187012159. The reversal of 187012157 is 751210781.

187012157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 159491641 + 27520516 = 12629^2 + 5246^2 .

It is a cyclic number.

It is not a de Polignac number, because 187012157 - 2⁶ = 187012093 is a prime.

Together with 187012159, 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 (187012151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93506078 + 93506079.

It is an arithmetic number, because the mean of its divisors is an integer number (93506079).

Almost surely, 2^187012157 is an apocalyptic number.

It is an amenable number.

187012157 is a deficient number, since it is larger than the sum of its proper divisors (1).

187012157 is an equidigital number, since it uses as much as digits as its factorization.

187012157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3920, while the sum is 32.

The square root of 187012157 is about 13675.2388278962. The cubic root of 187012157 is about 571.8602982952.

The spelling of 187012157 in words is "one hundred eighty-seven million, twelve thousand, one hundred fifty-seven".