91141382 has 4 divisors (see below), whose sum is σ = 136712076. Its totient is φ = 45570690.

The previous prime is 91141343. The next prime is 91141441. The reversal of 91141382 is 28314119.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22785344 + ... + 22785347.

It is an arithmetic number, because the mean of its divisors is an integer number (34178019).

Almost surely, 2^91141382 is an apocalyptic number.

91141382 is a deficient number, since it is larger than the sum of its proper divisors (45570694).

91141382 is a wasteful number, since it uses less digits than its factorization.

91141382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45570693.

The product of its digits is 1728, while the sum is 29.

The square root of 91141382 is about 9546.7995684418. The cubic root of 91141382 is about 450.0269646394.

The spelling of 91141382 in words is "ninety-one million, one hundred forty-one thousand, three hundred eighty-two".