191386714 has 24 divisors (see below), whose sum is σ = 307257300. Its totient is φ = 89099136.

The previous prime is 191386711. The next prime is 191386733. The reversal of 191386714 is 417683191.

It can be written as a sum of positive squares in 2 ways, for example, as 177822225 + 13564489 = 13335^2 + 3683^2 .

It is not an unprimeable number, because it can be changed into a prime (191386711) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 548212 + ... + 548560.

Almost surely, 2^191386714 is an apocalyptic number.

191386714 is a deficient number, since it is larger than the sum of its proper divisors (115870586).

191386714 is a wasteful number, since it uses less digits than its factorization.

191386714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622 (or 495 counting only the distinct ones).

The product of its digits is 36288, while the sum is 40.

The square root of 191386714 is about 13834.2587080046. The cubic root of 191386714 is about 576.2849288778.

It can be divided in two parts, 19138 and 6714, that added together give a palindrome (25852).

The spelling of 191386714 in words is "one hundred ninety-one million, three hundred eighty-six thousand, seven hundred fourteen".