72382191 has 16 divisors (see below), whose sum is σ = 116102400. Its totient is φ = 39184128.

The previous prime is 72382171. The next prime is 72382199. The reversal of 72382191 is 19128327.

It is not a de Polignac number, because 72382191 - 2¹⁰ = 72381167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72382199) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90306 + ... + 91103.

It is an arithmetic number, because the mean of its divisors is an integer number (7256400).

Almost surely, 2^72382191 is an apocalyptic number.

72382191 is a deficient number, since it is larger than the sum of its proper divisors (43720209).

72382191 is a wasteful number, since it uses less digits than its factorization.

72382191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181438.

The product of its digits is 6048, while the sum is 33.

The square root of 72382191 is about 8507.7723876465. The cubic root of 72382191 is about 416.7515671972.

The spelling of 72382191 in words is "seventy-two million, three hundred eighty-two thousand, one hundred ninety-one".