116215805 has 8 divisors (see below), whose sum is σ = 139564032. Its totient is φ = 92902608.

The previous prime is 116215793. The next prime is 116215811. The reversal of 116215805 is 508512611.

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

It is a cyclic number.

It is not a de Polignac number, because 116215805 - 2⁶ = 116215741 is a prime.

It is a super-2 number, since 2×116215805² = 27012226663596050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 797 + ... + 15266.

It is an arithmetic number, because the mean of its divisors is an integer number (17445504).

Almost surely, 2^116215805 is an apocalyptic number.

It is an amenable number.

116215805 is a deficient number, since it is larger than the sum of its proper divisors (23348227).

116215805 is a wasteful number, since it uses less digits than its factorization.

116215805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17515.

The product of its (nonzero) digits is 2400, while the sum is 29.

The square root of 116215805 is about 10780.3434546400. The cubic root of 116215805 is about 488.0021457511.

The spelling of 116215805 in words is "one hundred sixteen million, two hundred fifteen thousand, eight hundred five".