622523137 has 2 divisors, whose sum is σ = 622523138. Its totient is φ = 622523136.

The previous prime is 622523093. The next prime is 622523159. The reversal of 622523137 is 731325226.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 439489296 + 183033841 = 20964^2 + 13529^2 .

It is a cyclic number.

It is not a de Polignac number, because 622523137 - 2¹¹ = 622521089 is a prime.

It is a super-2 number, since 2×622523137² = 775070112200641538, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 622523099 and 622523108.

It is not a weakly prime, because it can be changed into another prime (622523177) 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, 311261568 + 311261569.

It is an arithmetic number, because the mean of its divisors is an integer number (311261569).

Almost surely, 2^622523137 is an apocalyptic number.

It is an amenable number.

622523137 is a deficient number, since it is larger than the sum of its proper divisors (1).

622523137 is an equidigital number, since it uses as much as digits as its factorization.

622523137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 31.

The square root of 622523137 is about 24950.4135637067. The cubic root of 622523137 is about 853.8570444294.

The spelling of 622523137 in words is "six hundred twenty-two million, five hundred twenty-three thousand, one hundred thirty-seven".