622125817 has 2 divisors, whose sum is σ = 622125818. Its totient is φ = 622125816.

The previous prime is 622125799. The next prime is 622125821. The reversal of 622125817 is 718521226.

It is a happy number.

622125817 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 462078016 + 160047801 = 21496^2 + 12651^2 .

It is a cyclic number.

It is not a de Polignac number, because 622125817 - 2¹⁵ = 622093049 is a prime.

It is not a weakly prime, because it can be changed into another prime (622125857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311062908 + 311062909.

It is an arithmetic number, because the mean of its divisors is an integer number (311062909).

Almost surely, 2^622125817 is an apocalyptic number.

It is an amenable number.

622125817 is a deficient number, since it is larger than the sum of its proper divisors (1).

622125817 is an equidigital number, since it uses as much as digits as its factorization.

622125817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13440, while the sum is 34.

The square root of 622125817 is about 24942.4501001806. The cubic root of 622125817 is about 853.6753501481.

The spelling of 622125817 in words is "six hundred twenty-two million, one hundred twenty-five thousand, eight hundred seventeen".