722145613 has 16 divisors (see below), whose sum is σ = 848646400. Its totient is φ = 601520256.

The previous prime is 722145563. The next prime is 722145629. The reversal of 722145613 is 316541227.

It is a cyclic number.

It is not a de Polignac number, because 722145613 - 2¹³ = 722137421 is a prime.

It is a super-3 number, since 3×722145613³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722145653) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 361345 + ... + 363337.

It is an arithmetic number, because the mean of its divisors is an integer number (53040400).

Almost surely, 2^722145613 is an apocalyptic number.

It is an amenable number.

722145613 is a deficient number, since it is larger than the sum of its proper divisors (126500787).

722145613 is a wasteful number, since it uses less digits than its factorization.

722145613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3436.

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

The square root of 722145613 is about 26872.7671258469. The cubic root of 722145613 is about 897.1703775289.

The spelling of 722145613 in words is "seven hundred twenty-two million, one hundred forty-five thousand, six hundred thirteen".