91150272 has 84 divisors (see below), whose sum is σ = 270988536. Its totient is φ = 30378240.

The previous prime is 91150271. The next prime is 91150273. The reversal of 91150272 is 27205119.

91150272 is a `hidden beast` number, since 91 + 1 + 502 + 72 = 666.

It is an interprime number because it is at equal distance from previous prime (91150271) and next prime (91150273).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91150271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12622 + ... + 18482.

It is an arithmetic number, because the mean of its divisors is an integer number (3226054).

Almost surely, 2^91150272 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 91150272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135494268).

91150272 is an abundant number, since it is smaller than the sum of its proper divisors (179838264).

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

91150272 is an equidigital number, since it uses as much as digits as its factorization.

91150272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5888 (or 5866 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 91150272 is about 9547.2651581487. The cubic root of 91150272 is about 450.0415961549.

The spelling of 91150272 in words is "ninety-one million, one hundred fifty thousand, two hundred seventy-two".