116321257 has 4 divisors (see below), whose sum is σ = 125269060. Its totient is φ = 107373456.

The previous prime is 116321251. The next prime is 116321267. The reversal of 116321257 is 752123611.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 752123611 = 719 ⋅1046069.

It can be written as a sum of positive squares in 2 ways, for example, as 63744256 + 52577001 = 7984^2 + 7251^2 .

It is a cyclic number.

It is not a de Polignac number, because 116321257 - 2¹¹ = 116319209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116321251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4473882 + ... + 4473907.

It is an arithmetic number, because the mean of its divisors is an integer number (31317265).

Almost surely, 2^116321257 is an apocalyptic number.

It is an amenable number.

116321257 is a deficient number, since it is larger than the sum of its proper divisors (8947803).

116321257 is an equidigital number, since it uses as much as digits as its factorization.

116321257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8947802.

The product of its digits is 2520, while the sum is 28.

The square root of 116321257 is about 10785.2332844496. The cubic root of 116321257 is about 488.1497024031.

Adding to 116321257 its reverse (752123611), we get a palindrome (868444868).

The spelling of 116321257 in words is "one hundred sixteen million, three hundred twenty-one thousand, two hundred fifty-seven".