722142929 has 2 divisors, whose sum is σ = 722142930. Its totient is φ = 722142928.

The previous prime is 722142919. The next prime is 722142931. The reversal of 722142929 is 929241227.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 721029904 + 1113025 = 26852^2 + 1055^2 .

It is a cyclic number.

It is not a de Polignac number, because 722142929 - 2²⁸ = 453707473 is a prime.

Together with 722142931, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 722142892 and 722142901.

It is not a weakly prime, because it can be changed into another prime (722142919) 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 as a sum of consecutive naturals, namely, 361071464 + 361071465.

It is an arithmetic number, because the mean of its divisors is an integer number (361071465).

Almost surely, 2^722142929 is an apocalyptic number.

It is an amenable number.

722142929 is a deficient number, since it is larger than the sum of its proper divisors (1).

722142929 is an equidigital number, since it uses as much as digits as its factorization.

722142929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 38.

The square root of 722142929 is about 26872.7171867677. The cubic root of 722142929 is about 897.1692660225.

The spelling of 722142929 in words is "seven hundred twenty-two million, one hundred forty-two thousand, nine hundred twenty-nine".