91155383 has 8 divisors (see below), whose sum is σ = 102130320. Its totient is φ = 80628480.

The previous prime is 91155373. The next prime is 91155391. The reversal of 91155383 is 38355119.

91155383 is nontrivially palindromic in base 15.

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

It is a cyclic number.

It is not a de Polignac number, because 91155383 - 2¹⁶ = 91089847 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 (91155353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111578 + ... + 112391.

It is an arithmetic number, because the mean of its divisors is an integer number (12766290).

Almost surely, 2^91155383 is an apocalyptic number.

91155383 is a deficient number, since it is larger than the sum of its proper divisors (10974937).

91155383 is a wasteful number, since it uses less digits than its factorization.

91155383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224017.

The product of its digits is 16200, while the sum is 35.

The square root of 91155383 is about 9547.5328226720. The cubic root of 91155383 is about 450.0500076113.

The spelling of 91155383 in words is "ninety-one million, one hundred fifty-five thousand, three hundred eighty-three".