191937214 has 24 divisors (see below), whose sum is σ = 335530728. Its totient is φ = 82106640.

The previous prime is 191937203. The next prime is 191937217. The reversal of 191937214 is 412739191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191937217) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 63297 + ... + 66259.

It is an arithmetic number, because the mean of its divisors is an integer number (13980447).

Almost surely, 2^191937214 is an apocalyptic number.

191937214 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

191937214 is a deficient number, since it is larger than the sum of its proper divisors (143593514).

191937214 is a wasteful number, since it uses less digits than its factorization.

191937214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3640 (or 3633 counting only the distinct ones).

The product of its digits is 13608, while the sum is 37.

The square root of 191937214 is about 13854.1406806774. The cubic root of 191937214 is about 576.8369371827.

The spelling of 191937214 in words is "one hundred ninety-one million, nine hundred thirty-seven thousand, two hundred fourteen".