722143465 has 8 divisors (see below), whose sum is σ = 866967048. Its totient is φ = 577451520.

The previous prime is 722143427. The next prime is 722143547. The reversal of 722143465 is 564341227.

It can be written as a sum of positive squares in 4 ways, for example, as 312971481 + 409171984 = 17691^2 + 20228^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-722143465 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 722143465.

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, 20406 + ... + 43135.

It is an arithmetic number, because the mean of its divisors is an integer number (108370881).

Almost surely, 2^722143465 is an apocalyptic number.

It is an amenable number.

722143465 is a deficient number, since it is larger than the sum of its proper divisors (144823583).

722143465 is a wasteful number, since it uses less digits than its factorization.

722143465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65819.

The product of its digits is 40320, while the sum is 34.

The square root of 722143465 is about 26872.7271597060. The cubic root of 722143465 is about 897.1694879927.

The spelling of 722143465 in words is "seven hundred twenty-two million, one hundred forty-three thousand, four hundred sixty-five".