116612521 has 4 divisors (see below), whose sum is σ = 117451600. Its totient is φ = 115773444.

The previous prime is 116612513. The next prime is 116612563. The reversal of 116612521 is 125216611.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 116612521 - 2³ = 116612513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116612581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419331 + ... + 419608.

It is an arithmetic number, because the mean of its divisors is an integer number (29362900).

Almost surely, 2^116612521 is an apocalyptic number.

It is an amenable number.

116612521 is a deficient number, since it is larger than the sum of its proper divisors (839079).

116612521 is an equidigital number, since it uses as much as digits as its factorization.

116612521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839078.

The product of its digits is 720, while the sum is 25.

The square root of 116612521 is about 10798.7277491379. The cubic root of 116612521 is about 488.5567988986.

The spelling of 116612521 in words is "one hundred sixteen million, six hundred twelve thousand, five hundred twenty-one".