116297281 has 4 divisors (see below), whose sum is σ = 116429872. Its totient is φ = 116164692.

The previous prime is 116297273. The next prime is 116297303. The reversal of 116297281 is 182792611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 182792611 = 3257 ⋅56123.

It is a cyclic number.

It is not a de Polignac number, because 116297281 - 2³ = 116297273 is a prime.

It is a super-2 number, since 2×116297281² = 27050115135985922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 116297281.

It is not an unprimeable number, because it can be changed into a prime (116297261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64971 + ... + 66736.

It is an arithmetic number, because the mean of its divisors is an integer number (29107468).

Almost surely, 2^116297281 is an apocalyptic number.

It is an amenable number.

116297281 is a deficient number, since it is larger than the sum of its proper divisors (132591).

116297281 is an equidigital number, since it uses as much as digits as its factorization.

116297281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132590.

The product of its digits is 12096, while the sum is 37.

The square root of 116297281 is about 10784.1217073993. The cubic root of 116297281 is about 488.1161611519.

The spelling of 116297281 in words is "one hundred sixteen million, two hundred ninety-seven thousand, two hundred eighty-one".