722162513 has 12 divisors (see below), whose sum is σ = 740717568. Its totient is φ = 703888920.

The previous prime is 722162461. The next prime is 722162549. The reversal of 722162513 is 315261227.

It is a happy number.

It is not a de Polignac number, because 722162513 - 2²⁶ = 655053649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (722162563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2551670 + ... + 2551952.

It is an arithmetic number, because the mean of its divisors is an integer number (61726464).

Almost surely, 2^722162513 is an apocalyptic number.

It is an amenable number.

722162513 is a deficient number, since it is larger than the sum of its proper divisors (18555055).

722162513 is an equidigital number, since it uses as much as digits as its factorization.

722162513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764 (or 481 counting only the distinct ones).

The product of its digits is 5040, while the sum is 29.

The square root of 722162513 is about 26873.0815687371. The cubic root of 722162513 is about 897.1773761456.

The spelling of 722162513 in words is "seven hundred twenty-two million, one hundred sixty-two thousand, five hundred thirteen".