91314280 has 32 divisors (see below), whose sum is σ = 205743240. Its totient is φ = 36474880.

The previous prime is 91314271. The next prime is 91314281. The reversal of 91314280 is 8241319.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 59074596 + 32239684 = 7686^2 + 5678^2 .

It is not an unprimeable number, because it can be changed into a prime (91314281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42840 + ... + 44920.

Almost surely, 2^91314280 is an apocalyptic number.

It is an amenable number.

91314280 is an abundant number, since it is smaller than the sum of its proper divisors (114428960).

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

91314280 is a wasteful number, since it uses less digits than its factorization.

91314280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3189 (or 3185 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 91314280 is about 9555.8505639216. The cubic root of 91314280 is about 450.3113565381.

Adding to 91314280 its reverse (8241319), we get a palindrome (99555599).

The spelling of 91314280 in words is "ninety-one million, three hundred fourteen thousand, two hundred eighty".