91054080 has 336 divisors, whose sum is σ = 357804720. Its totient is φ = 21233664.

The previous prime is 91054009. The next prime is 91054097. The reversal of 91054080 is 8045019.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4792311 + ... + 4792329.

It is an arithmetic number, because the mean of its divisors is an integer number (1064895).

Almost surely, 2^91054080 is an apocalyptic number.

91054080 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91054080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178902360).

91054080 is an abundant number, since it is smaller than the sum of its proper divisors (266750640).

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

91054080 is a wasteful number, since it uses less digits than its factorization.

91054080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69 (or 42 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 91054080 is about 9542.2261553581. The cubic root of 91054080 is about 449.8832289608.

Adding to 91054080 its reverse (8045019), we get a palindrome (99099099).

The spelling of 91054080 in words is "ninety-one million, fifty-four thousand, eighty".