91149336 has 96 divisors (see below), whose sum is σ = 257400000. Its totient is φ = 29115072.

The previous prime is 91149329. The next prime is 91149371. The reversal of 91149336 is 63394119.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 91149336.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 182415 + ... + 182913.

It is an arithmetic number, because the mean of its divisors is an integer number (2681250).

Almost surely, 2^91149336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91149336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128700000).

91149336 is an abundant number, since it is smaller than the sum of its proper divisors (166250664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91149336 is a wasteful number, since it uses less digits than its factorization.

91149336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613 (or 606 counting only the distinct ones).

The product of its digits is 17496, while the sum is 36.

The square root of 91149336 is about 9547.2161387496. The cubic root of 91149336 is about 450.0400556937.

The spelling of 91149336 in words is "ninety-one million, one hundred forty-nine thousand, three hundred thirty-six".