194971086 has 12 divisors (see below), whose sum is σ = 422437392. Its totient is φ = 64990356.

The previous prime is 194971061. The next prime is 194971111. The reversal of 194971086 is 680179491.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (194971061) and next prime (194971111).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5415846 + ... + 5415881.

It is an arithmetic number, because the mean of its divisors is an integer number (35203116).

Almost surely, 2^194971086 is an apocalyptic number.

194971086 is an abundant number, since it is smaller than the sum of its proper divisors (227466306).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

194971086 is a wasteful number, since it uses less digits than its factorization.

194971086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10831735 (or 10831732 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 194971086 is about 13963.2047181154. The cubic root of 194971086 is about 579.8603369626.

The spelling of 194971086 in words is "one hundred ninety-four million, nine hundred seventy-one thousand, eighty-six".