191260200 has 144 divisors (see below), whose sum is σ = 630406080. Its totient is φ = 47959040.

The previous prime is 191260189. The next prime is 191260211. The reversal of 191260200 is 2062191.

It is an interprime number because it is at equal distance from previous prime (191260189) and next prime (191260211).

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 35 ways as a sum of consecutive naturals, for example, 172849 + ... + 173951.

It is an arithmetic number, because the mean of its divisors is an integer number (4377820).

Almost surely, 2^191260200 is an apocalyptic number.

191260200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 191260200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (315203040).

191260200 is an abundant number, since it is smaller than the sum of its proper divisors (439145880).

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

191260200 is a wasteful number, since it uses less digits than its factorization.

191260200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156 (or 1130 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 191260200 is about 13829.6854628007. The cubic root of 191260200 is about 576.1579186988.

The spelling of 191260200 in words is "one hundred ninety-one million, two hundred sixty thousand, two hundred".