191401316 has 12 divisors (see below), whose sum is σ = 345757440. Its totient is φ = 92613480.

The previous prime is 191401277. The next prime is 191401337. The reversal of 191401316 is 613104191.

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, 771656 + ... + 771903.

It is an arithmetic number, because the mean of its divisors is an integer number (28813120).

Almost surely, 2^191401316 is an apocalyptic number.

It is an amenable number.

191401316 is a deficient number, since it is larger than the sum of its proper divisors (154356124).

191401316 is a wasteful number, since it uses less digits than its factorization.

191401316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543594 (or 1543592 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 191401316 is about 13834.7864457678. The cubic root of 191401316 is about 576.2995845425.

The spelling of 191401316 in words is "one hundred ninety-one million, four hundred one thousand, three hundred sixteen".