722137069 has 2 divisors, whose sum is σ = 722137070. Its totient is φ = 722137068.

The previous prime is 722137063. The next prime is 722137127. The reversal of 722137069 is 960731227.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 721567044 + 570025 = 26862^2 + 755^2 .

It is a cyclic number.

It is not a de Polignac number, because 722137069 - 2⁵ = 722137037 is a prime.

It is a super-2 number, since 2×722137069² = 1042963892847821522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (722137063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361068534 + 361068535.

It is an arithmetic number, because the mean of its divisors is an integer number (361068535).

Almost surely, 2^722137069 is an apocalyptic number.

It is an amenable number.

722137069 is a deficient number, since it is larger than the sum of its proper divisors (1).

722137069 is an equidigital number, since it uses as much as digits as its factorization.

722137069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 722137069 is about 26872.6081540293. The cubic root of 722137069 is about 897.1668392517.

The spelling of 722137069 in words is "seven hundred twenty-two million, one hundred thirty-seven thousand, sixty-nine".