91132263 has 32 divisors (see below), whose sum is σ = 138309120. Its totient is φ = 59290560.

The previous prime is 91132253. The next prime is 91132271. The reversal of 91132263 is 36223119.

It is not a de Polignac number, because 91132263 - 2¹³ = 91124071 is a prime.

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 (91132243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 262456 + ... + 262802.

It is an arithmetic number, because the mean of its divisors is an integer number (4322160).

Almost surely, 2^91132263 is an apocalyptic number.

91132263 is a deficient number, since it is larger than the sum of its proper divisors (47176857).

91132263 is a wasteful number, since it uses less digits than its factorization.

91132263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564 (or 558 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 91132263 is about 9546.3219618867. The cubic root of 91132263 is about 450.0119552379.

The spelling of 91132263 in words is "ninety-one million, one hundred thirty-two thousand, two hundred sixty-three".