716415121 has 16 divisors (see below), whose sum is σ = 770652160. Its totient is φ = 663973200.

The previous prime is 716415107. The next prime is 716415143. The reversal of 716415121 is 121514617.

It is a cyclic number.

It is not a de Polignac number, because 716415121 - 2²³ = 708026513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 716415121.

It is not an unprimeable number, because it can be changed into a prime (716415191) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 190360 + ... + 194086.

It is an arithmetic number, because the mean of its divisors is an integer number (48165760).

Almost surely, 2^716415121 is an apocalyptic number.

It is an amenable number.

716415121 is a deficient number, since it is larger than the sum of its proper divisors (54237039).

716415121 is a wasteful number, since it uses less digits than its factorization.

716415121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3964.

The product of its digits is 1680, while the sum is 28.

The square root of 716415121 is about 26765.9320966037. The cubic root of 716415121 is about 894.7909464605.

Adding to 716415121 its reverse (121514617), we get a palindrome (837929738).

The spelling of 716415121 in words is "seven hundred sixteen million, four hundred fifteen thousand, one hundred twenty-one".