669314123 has 16 divisors (see below), whose sum is σ = 715889664. Its totient is φ = 623575680.

The previous prime is 669314119. The next prime is 669314141. The reversal of 669314123 is 321413966.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 669314123 - 2² = 669314119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (669314153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1223336 + ... + 1223882.

It is an arithmetic number, because the mean of its divisors is an integer number (44743104).

Almost surely, 2^669314123 is an apocalyptic number.

669314123 is a deficient number, since it is larger than the sum of its proper divisors (46575541).

669314123 is a wasteful number, since it uses less digits than its factorization.

669314123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162.

The product of its digits is 23328, while the sum is 35.

The square root of 669314123 is about 25871.1059485288. The cubic root of 669314123 is about 874.7353204347.

The spelling of 669314123 in words is "six hundred sixty-nine million, three hundred fourteen thousand, one hundred twenty-three".