722715151 has 4 divisors (see below), whose sum is σ = 722788704. Its totient is φ = 722641600.

The previous prime is 722715139. The next prime is 722715157. The reversal of 722715151 is 151517227.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 722715151 - 2¹⁹ = 722190863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722715157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19255 + ... + 42616.

It is an arithmetic number, because the mean of its divisors is an integer number (180697176).

Almost surely, 2^722715151 is an apocalyptic number.

722715151 is a deficient number, since it is larger than the sum of its proper divisors (73553).

722715151 is a wasteful number, since it uses less digits than its factorization.

722715151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73552.

The product of its digits is 4900, while the sum is 31.

The square root of 722715151 is about 26883.3619735330. The cubic root of 722715151 is about 897.4061740874.

The spelling of 722715151 in words is "seven hundred twenty-two million, seven hundred fifteen thousand, one hundred fifty-one".