721520114 has 16 divisors (see below), whose sum is σ = 1252550400. Its totient is φ = 305308224.

The previous prime is 721520057. The next prime is 721520123. The reversal of 721520114 is 411025127.

It is a self number, because there is not a number n which added to its sum of digits gives 721520114.

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, 325079 + ... + 327290.

It is an arithmetic number, because the mean of its divisors is an integer number (78284400).

Almost surely, 2^721520114 is an apocalyptic number.

721520114 is a deficient number, since it is larger than the sum of its proper divisors (531030286).

721520114 is a wasteful number, since it uses less digits than its factorization.

721520114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652457.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 721520114 is about 26861.1264469679. The cubic root of 721520114 is about 896.9112694548.

The spelling of 721520114 in words is "seven hundred twenty-one million, five hundred twenty thousand, one hundred fourteen".