194987494 has 8 divisors (see below), whose sum is σ = 314979840. Its totient is φ = 89994216.

The previous prime is 194987483. The next prime is 194987543. The reversal of 194987494 is 494789491.

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

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 3749734 + ... + 3749785.

It is an arithmetic number, because the mean of its divisors is an integer number (39372480).

Almost surely, 2^194987494 is an apocalyptic number.

194987494 is a deficient number, since it is larger than the sum of its proper divisors (119992346).

194987494 is a wasteful number, since it uses less digits than its factorization.

194987494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7499534.

The product of its digits is 2612736, while the sum is 55.

The square root of 194987494 is about 13963.7922499585. The cubic root of 194987494 is about 579.8766027617.

The spelling of 194987494 in words is "one hundred ninety-four million, nine hundred eighty-seven thousand, four hundred ninety-four".