116215643 has 2 divisors, whose sum is σ = 116215644. Its totient is φ = 116215642.

The previous prime is 116215637. The next prime is 116215661. The reversal of 116215643 is 346512611.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (346512611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 116215643 - 2¹⁰ = 116214619 is a prime.

It is not a weakly prime, because it can be changed into another prime (116215243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58107821 + 58107822.

It is an arithmetic number, because the mean of its divisors is an integer number (58107822).

Almost surely, 2^116215643 is an apocalyptic number.

116215643 is a deficient number, since it is larger than the sum of its proper divisors (1).

116215643 is an equidigital number, since it uses as much as digits as its factorization.

116215643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 29.

The square root of 116215643 is about 10780.3359409621. The cubic root of 116215643 is about 488.0019189994.

The spelling of 116215643 in words is "one hundred sixteen million, two hundred fifteen thousand, six hundred forty-three".