191914892 has 12 divisors (see below), whose sum is σ = 361685856. Its totient is φ = 88576080.

The previous prime is 191914871. The next prime is 191914903. The reversal of 191914892 is 298419191.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1845284 + ... + 1845387.

It is an arithmetic number, because the mean of its divisors is an integer number (30140488).

Almost surely, 2^191914892 is an apocalyptic number.

It is an amenable number.

191914892 is a deficient number, since it is larger than the sum of its proper divisors (169770964).

191914892 is a wasteful number, since it uses less digits than its factorization.

191914892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3690688 (or 3690686 counting only the distinct ones).

The product of its digits is 46656, while the sum is 44.

The square root of 191914892 is about 13853.3350497272. The cubic root of 191914892 is about 576.8145745691.

The spelling of 191914892 in words is "one hundred ninety-one million, nine hundred fourteen thousand, eight hundred ninety-two".