116405305 has 8 divisors (see below), whose sum is σ = 147038400. Its totient is φ = 88222896.

The previous prime is 116405269. The next prime is 116405327. The reversal of 116405305 is 503504611.

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 116405305 - 2⁹ = 116404793 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 116405305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 612565 + ... + 612754.

It is an arithmetic number, because the mean of its divisors is an integer number (18379800).

Almost surely, 2^116405305 is an apocalyptic number.

It is an amenable number.

116405305 is a deficient number, since it is larger than the sum of its proper divisors (30633095).

116405305 is a wasteful number, since it uses less digits than its factorization.

116405305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225343.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 116405305 is about 10789.1290195270. The cubic root of 116405305 is about 488.2672450592.

Adding to 116405305 its reverse (503504611), we get a palindrome (619909916).

The spelling of 116405305 in words is "one hundred sixteen million, four hundred five thousand, three hundred five".