91041272 has 32 divisors (see below), whose sum is σ = 195448800. Its totient is φ = 38945664.

The previous prime is 91041263. The next prime is 91041287. The reversal of 91041272 is 27214019.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38558 + ... + 40850.

It is an arithmetic number, because the mean of its divisors is an integer number (6107775).

Almost surely, 2^91041272 is an apocalyptic number.

It is an amenable number.

91041272 is an abundant number, since it is smaller than the sum of its proper divisors (104407528).

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

91041272 is a wasteful number, since it uses less digits than its factorization.

91041272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3015 (or 3011 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 91041272 is about 9541.5550095359. Note that the first 3 decimals coincide. The cubic root of 91041272 is about 449.8621338981.

The spelling of 91041272 in words is "ninety-one million, forty-one thousand, two hundred seventy-two".