116523280 has 20 divisors (see below), whose sum is σ = 270916812. Its totient is φ = 46609280.

The previous prime is 116523263. The next prime is 116523299. The reversal of 116523280 is 82325611.

116523280 is nontrivially palindromic in base 15.

It can be written as a sum of positive squares in 2 ways, for example, as 32764176 + 83759104 = 5724^2 + 9152^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 728191 + ... + 728350.

Almost surely, 2^116523280 is an apocalyptic number.

116523280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

116523280 is an abundant number, since it is smaller than the sum of its proper divisors (154393532).

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

116523280 is a wasteful number, since it uses less digits than its factorization.

116523280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456554 (or 1456548 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 116523280 is about 10794.5949437670. The cubic root of 116523280 is about 488.4321398326.

Adding to 116523280 its reverse (82325611), we get a palindrome (198848891).

The spelling of 116523280 in words is "one hundred sixteen million, five hundred twenty-three thousand, two hundred eighty".