91041480 has 48 divisors (see below), whose sum is σ = 295885980. Its totient is φ = 24277632.

The previous prime is 91041437. The next prime is 91041481. The reversal of 91041480 is 8414019.

It can be written as a sum of positive squares in 2 ways, for example, as 88397604 + 2643876 = 9402^2 + 1626^2 .

It is not an unprimeable number, because it can be changed into a prime (91041481) 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, 126087 + ... + 126806.

Almost surely, 2^91041480 is an apocalyptic number.

91041480 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

91041480 is an abundant number, since it is smaller than the sum of its proper divisors (204844500).

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

91041480 is a wasteful number, since it uses less digits than its factorization.

91041480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252910 (or 252903 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 91041480 is about 9541.5659092206. The cubic root of 91041480 is about 449.8624764945.

Adding to 91041480 its reverse (8414019), we get a palindrome (99455499).

The spelling of 91041480 in words is "ninety-one million, forty-one thousand, four hundred eighty".