191850842 has 8 divisors (see below), whose sum is σ = 287882100. Its totient is φ = 95890144.

The previous prime is 191850823. The next prime is 191850871. The reversal of 191850842 is 248058191.

It can be written as a sum of positive squares in 2 ways, for example, as 189915961 + 1934881 = 13781^2 + 1391^2 .

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

It is a super-2 number, since 2×191850842² = 73613491152217928, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 191850796 and 191850805.

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, 10217 + ... + 22092.

Almost surely, 2^191850842 is an apocalyptic number.

191850842 is a deficient number, since it is larger than the sum of its proper divisors (96031258).

191850842 is a wasteful number, since it uses less digits than its factorization.

191850842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35280.

The product of its (nonzero) digits is 23040, while the sum is 38.

The square root of 191850842 is about 13851.0231391042. The cubic root of 191850842 is about 576.7503984059.

The spelling of 191850842 in words is "one hundred ninety-one million, eight hundred fifty thousand, eight hundred forty-two".