116521057 has 8 divisors (see below), whose sum is σ = 119814912. Its totient is φ = 113248800.

The previous prime is 116521051. The next prime is 116521063. The reversal of 116521057 is 750125611.

It is an interprime number because it is at equal distance from previous prime (116521051) and next prime (116521063).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-116521057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116521051) 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, 5868 + ... + 16354.

It is an arithmetic number, because the mean of its divisors is an integer number (14976864).

Almost surely, 2^116521057 is an apocalyptic number.

It is an amenable number.

116521057 is a deficient number, since it is larger than the sum of its proper divisors (3293855).

116521057 is a wasteful number, since it uses less digits than its factorization.

116521057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10799.

The product of its (nonzero) digits is 2100, while the sum is 28.

The square root of 116521057 is about 10794.4919750769. The cubic root of 116521057 is about 488.4290337535.

Adding to 116521057 its reverse (750125611), we get a palindrome (866646668).

It can be divided in two parts, 1165 and 21057, that added together give a palindrome (22222).

The spelling of 116521057 in words is "one hundred sixteen million, five hundred twenty-one thousand, fifty-seven".