623114509 has 2 divisors, whose sum is σ = 623114510. Its totient is φ = 623114508.

The previous prime is 623114507. The next prime is 623114581. The reversal of 623114509 is 905411326.

623114509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 501894409 + 121220100 = 22403^2 + 11010^2 .

It is a cyclic number.

It is not a de Polignac number, because 623114509 - 2¹ = 623114507 is a prime.

It is a super-2 number, since 2×623114509² = 776543382652622162, which contains 22 as substring.

Together with 623114507, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (623114507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311557254 + 311557255.

It is an arithmetic number, because the mean of its divisors is an integer number (311557255).

Almost surely, 2^623114509 is an apocalyptic number.

It is an amenable number.

623114509 is a deficient number, since it is larger than the sum of its proper divisors (1).

623114509 is an equidigital number, since it uses as much as digits as its factorization.

623114509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 623114509 is about 24962.2616964088. The cubic root of 623114509 is about 854.1273355020.

The spelling of 623114509 in words is "six hundred twenty-three million, one hundred fourteen thousand, five hundred nine".