91347159 has 4 divisors (see below), whose sum is σ = 121796216. Its totient is φ = 60898104.

The previous prime is 91347149. The next prime is 91347161. The reversal of 91347159 is 95174319.

It is a happy number.

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

It is not a de Polignac number, because 91347159 - 2⁷ = 91347031 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 (91347149) 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, 15224524 + ... + 15224529.

It is an arithmetic number, because the mean of its divisors is an integer number (30449054).

Almost surely, 2^91347159 is an apocalyptic number.

91347159 is a deficient number, since it is larger than the sum of its proper divisors (30449057).

91347159 is a wasteful number, since it uses less digits than its factorization.

91347159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30449056.

The product of its digits is 34020, while the sum is 39.

The square root of 91347159 is about 9557.5707687676. The cubic root of 91347159 is about 450.3653970469.

The spelling of 91347159 in words is "ninety-one million, three hundred forty-seven thousand, one hundred fifty-nine".