985193138 has 16 divisors (see below), whose sum is σ = 1483479360. Its totient is φ = 490704816.

The previous prime is 985193101. The next prime is 985193159. The reversal of 985193138 is 831391589.

It is a junction number, because it is equal to n+sod(n) for n = 985193092 and 985193101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1018331 + ... + 1019297.

It is an arithmetic number, because the mean of its divisors is an integer number (92717460).

Almost surely, 2^985193138 is an apocalyptic number.

985193138 is a deficient number, since it is larger than the sum of its proper divisors (498286222).

985193138 is a wasteful number, since it uses less digits than its factorization.

985193138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2401.

The product of its digits is 233280, while the sum is 47.

The square root of 985193138 is about 31387.7864463234. The cubic root of 985193138 is about 995.0398165931.

The spelling of 985193138 in words is "nine hundred eighty-five million, one hundred ninety-three thousand, one hundred thirty-eight".