191140484 has 6 divisors (see below), whose sum is σ = 334495854. Its totient is φ = 95570240.

The previous prime is 191140457. The next prime is 191140501. The reversal of 191140484 is 484041191.

It can be written as a sum of positive squares in only one way, i.e., 134560000 + 56580484 = 11600^2 + 7522^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 191140484.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23892557 + ... + 23892564.

It is an arithmetic number, because the mean of its divisors is an integer number (55749309).

Almost surely, 2^191140484 is an apocalyptic number.

It is an amenable number.

191140484 is a deficient number, since it is larger than the sum of its proper divisors (143355370).

191140484 is a wasteful number, since it uses less digits than its factorization.

191140484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47785125 (or 47785123 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 191140484 is about 13825.3565595973. The cubic root of 191140484 is about 576.0376815948.

The spelling of 191140484 in words is "one hundred ninety-one million, one hundred forty thousand, four hundred eighty-four".