187115023 has 2 divisors, whose sum is σ = 187115024. Its totient is φ = 187115022.

The previous prime is 187115003. The next prime is 187115083. The reversal of 187115023 is 320511781.

187115023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (320511781) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 187115023 - 2²⁵ = 153560591 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 187114982 and 187115000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (187115003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93557511 + 93557512.

It is an arithmetic number, because the mean of its divisors is an integer number (93557512).

Almost surely, 2^187115023 is an apocalyptic number.

187115023 is a deficient number, since it is larger than the sum of its proper divisors (1).

187115023 is an equidigital number, since it uses as much as digits as its factorization.

187115023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 187115023 is about 13678.9993420572. Note that the first 3 decimals coincide. The cubic root of 187115023 is about 571.9651296248.

The spelling of 187115023 in words is "one hundred eighty-seven million, one hundred fifteen thousand, twenty-three".