187085138 has 8 divisors (see below), whose sum is σ = 280815600. Its totient is φ = 93479940.

The previous prime is 187085099. The next prime is 187085147. The reversal of 187085138 is 831580781.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 187085095 and 187085104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27488 + ... + 33611.

It is an arithmetic number, because the mean of its divisors is an integer number (35101950).

Almost surely, 2^187085138 is an apocalyptic number.

187085138 is a deficient number, since it is larger than the sum of its proper divisors (93730462).

187085138 is a wasteful number, since it uses less digits than its factorization.

187085138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62632.

The product of its (nonzero) digits is 53760, while the sum is 41.

The square root of 187085138 is about 13677.9069305212. The cubic root of 187085138 is about 571.9346776106.

The spelling of 187085138 in words is "one hundred eighty-seven million, eighty-five thousand, one hundred thirty-eight".