722134493 has 2 divisors, whose sum is σ = 722134494. Its totient is φ = 722134492.

The previous prime is 722134489. The next prime is 722134537. The reversal of 722134493 is 394431227.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 720224569 + 1909924 = 26837^2 + 1382^2 .

It is an emirp because it is prime and its reverse (394431227) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 722134493 - 2² = 722134489 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (722134403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361067246 + 361067247.

It is an arithmetic number, because the mean of its divisors is an integer number (361067247).

Almost surely, 2^722134493 is an apocalyptic number.

It is an amenable number.

722134493 is a deficient number, since it is larger than the sum of its proper divisors (1).

722134493 is an equidigital number, since it uses as much as digits as its factorization.

722134493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 35.

The square root of 722134493 is about 26872.5602241394. The cubic root of 722134493 is about 897.1657724623.

It can be divided in two parts, 7221 and 34493, that added together give a palindrome (41714).

The spelling of 722134493 in words is "seven hundred twenty-two million, one hundred thirty-four thousand, four hundred ninety-three".