116215385 has 24 divisors (see below), whose sum is σ = 164752704. Its totient is φ = 78012480.

The previous prime is 116215367. The next prime is 116215391. The reversal of 116215385 is 583512611.

It is not a de Polignac number, because 116215385 - 2⁸ = 116215129 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3044 + ... + 15546.

It is an arithmetic number, because the mean of its divisors is an integer number (6864696).

Almost surely, 2^116215385 is an apocalyptic number.

It is an amenable number.

116215385 is a deficient number, since it is larger than the sum of its proper divisors (48537319).

116215385 is a wasteful number, since it uses less digits than its factorization.

116215385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12545 (or 12532 counting only the distinct ones).

The product of its digits is 7200, while the sum is 32.

The square root of 116215385 is about 10780.3239747236. The cubic root of 116215385 is about 488.0015578760.

Adding to 116215385 its reverse (583512611), we get a palindrome (699727996).

The spelling of 116215385 in words is "one hundred sixteen million, two hundred fifteen thousand, three hundred eighty-five".