123429699 has 12 divisors (see below), whose sum is σ = 178448400. Its totient is φ = 82212144.

The previous prime is 123429697. The next prime is 123429731. The reversal of 123429699 is 996924321.

It is a happy number.

It is not a de Polignac number, because 123429699 - 2¹ = 123429697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123429697) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5482 + ... + 16640.

It is an arithmetic number, because the mean of its divisors is an integer number (14870700).

Almost surely, 2^123429699 is an apocalyptic number.

123429699 is a deficient number, since it is larger than the sum of its proper divisors (55018701).

123429699 is a wasteful number, since it uses less digits than its factorization.

123429699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12394 (or 12391 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 123429699 is about 11109.8919436689. The cubic root of 123429699 is about 497.8974361774.

The spelling of 123429699 in words is "one hundred twenty-three million, four hundred twenty-nine thousand, six hundred ninety-nine".