191349486 has 32 divisors (see below), whose sum is σ = 429361920. Its totient is φ = 63162072.

The previous prime is 191349469. The next prime is 191349493. The reversal of 191349486 is 684943191.

It is a super-2 number, since 2×191349486² = 73229251584928392, which contains 22 as substring.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 11640 + ... + 22763.

It is an arithmetic number, because the mean of its divisors is an integer number (13417560).

Almost surely, 2^191349486 is an apocalyptic number.

191349486 is an abundant number, since it is smaller than the sum of its proper divisors (238012434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

191349486 is a wasteful number, since it uses less digits than its factorization.

191349486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34517 (or 34511 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 191349486 is about 13832.9131422127. The cubic root of 191349486 is about 576.2475606856.

The spelling of 191349486 in words is "one hundred ninety-one million, three hundred forty-nine thousand, four hundred eighty-six".