123669369 has 32 divisors (see below), whose sum is σ = 192816000. Its totient is φ = 78224832.

The previous prime is 123669353. The next prime is 123669383. The reversal of 123669369 is 963966321.

It is a happy number.

It is not a de Polignac number, because 123669369 - 2⁴ = 123669353 is a prime.

It is a super-2 number, since 2×123669369² = 30588225657716322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123669769) 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 31 ways as a sum of consecutive naturals, for example, 44859 + ... + 47535.

It is an arithmetic number, because the mean of its divisors is an integer number (6025500).

Almost surely, 2^123669369 is an apocalyptic number.

It is an amenable number.

123669369 is a deficient number, since it is larger than the sum of its proper divisors (69146631).

123669369 is a wasteful number, since it uses less digits than its factorization.

123669369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2774 (or 2768 counting only the distinct ones).

The product of its digits is 314928, while the sum is 45.

The square root of 123669369 is about 11120.6730461785. The cubic root of 123669369 is about 498.2194924451.

The spelling of 123669369 in words is "one hundred twenty-three million, six hundred sixty-nine thousand, three hundred sixty-nine".