68032191 has 4 divisors (see below), whose sum is σ = 90709592. Its totient is φ = 45354792.

The previous prime is 68032189. The next prime is 68032199. The reversal of 68032191 is 19123086.

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

It is not a de Polignac number, because 68032191 - 2¹ = 68032189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68032199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11338696 + ... + 11338701.

It is an arithmetic number, because the mean of its divisors is an integer number (22677398).

Almost surely, 2^68032191 is an apocalyptic number.

68032191 is a deficient number, since it is larger than the sum of its proper divisors (22677401).

68032191 is a wasteful number, since it uses less digits than its factorization.

68032191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22677400.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 68032191 is about 8248.1628863645. The cubic root of 68032191 is about 408.2299081482.

The spelling of 68032191 in words is "sixty-eight million, thirty-two thousand, one hundred ninety-one".