91105413 has 8 divisors (see below), whose sum is σ = 138827328. Its totient is φ = 52060224.

The previous prime is 91105379. The next prime is 91105439. The reversal of 91105413 is 31450119.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 91105413 - 2⁶ = 91105349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91105453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2169156 + ... + 2169197.

It is an arithmetic number, because the mean of its divisors is an integer number (17353416).

Almost surely, 2^91105413 is an apocalyptic number.

It is an amenable number.

91105413 is a deficient number, since it is larger than the sum of its proper divisors (47721915).

91105413 is a wasteful number, since it uses less digits than its factorization.

91105413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4338363.

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 91105413 is about 9544.9155575102. The cubic root of 91105413 is about 449.9677557143.

The spelling of 91105413 in words is "ninety-one million, one hundred five thousand, four hundred thirteen".