722516134 has 4 divisors (see below), whose sum is σ = 1083774204. Its totient is φ = 361258066.

The previous prime is 722516129. The next prime is 722516153. The reversal of 722516134 is 431615227.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 431615227 = 17 ⋅25389131.

It is a junction number, because it is equal to n+sod(n) for n = 722516096 and 722516105.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 180629032 + ... + 180629035.

It is an arithmetic number, because the mean of its divisors is an integer number (270943551).

Almost surely, 2^722516134 is an apocalyptic number.

722516134 is a deficient number, since it is larger than the sum of its proper divisors (361258070).

722516134 is a wasteful number, since it uses less digits than its factorization.

722516134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361258069.

The product of its digits is 10080, while the sum is 31.

The square root of 722516134 is about 26879.6602285074. The cubic root of 722516134 is about 897.3237924000.

The spelling of 722516134 in words is "seven hundred twenty-two million, five hundred sixteen thousand, one hundred thirty-four".