194807642 has 4 divisors (see below), whose sum is σ = 292211466. Its totient is φ = 97403820.

The previous prime is 194807633. The next prime is 194807651. The reversal of 194807642 is 246708491.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (194807633) and next prime (194807651).

It can be written as a sum of positive squares in only one way, i.e., 194630401 + 177241 = 13951^2 + 421^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 194807642.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48701909 + ... + 48701912.

Almost surely, 2^194807642 is an apocalyptic number.

194807642 is a deficient number, since it is larger than the sum of its proper divisors (97403824).

194807642 is an equidigital number, since it uses as much as digits as its factorization.

194807642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97403823.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 194807642 is about 13957.3508231326. The cubic root of 194807642 is about 579.6982596168.

The spelling of 194807642 in words is "one hundred ninety-four million, eight hundred seven thousand, six hundred forty-two".