91046113 has 4 divisors (see below), whose sum is σ = 91304388. Its totient is φ = 90787840.

The previous prime is 91046107. The next prime is 91046149. The reversal of 91046113 is 31164019.

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

It can be written as a sum of positive squares in 2 ways, for example, as 60652944 + 30393169 = 7788^2 + 5513^2 .

It is a cyclic number.

It is not a de Polignac number, because 91046113 - 2²¹ = 88948961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91046413) 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, 128608 + ... + 129313.

It is an arithmetic number, because the mean of its divisors is an integer number (22826097).

Almost surely, 2^91046113 is an apocalyptic number.

It is an amenable number.

91046113 is a deficient number, since it is larger than the sum of its proper divisors (258275).

91046113 is a wasteful number, since it uses less digits than its factorization.

91046113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258274.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 91046113 is about 9541.8086859882. The cubic root of 91046113 is about 449.8701073660.

The spelling of 91046113 in words is "ninety-one million, forty-six thousand, one hundred thirteen".