16123899 has 8 divisors (see below), whose sum is σ = 23452992. Its totient is φ = 9772040.

The previous prime is 16123883. The next prime is 16123901. The reversal of 16123899 is 99832161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16123899 - 2⁴ = 16123883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16123099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244269 + ... + 244334.

It is an arithmetic number, because the mean of its divisors is an integer number (2931624).

Almost surely, 2^16123899 is an apocalyptic number.

16123899 is a deficient number, since it is larger than the sum of its proper divisors (7329093).

16123899 is a wasteful number, since it uses less digits than its factorization.

16123899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488617.

The product of its digits is 23328, while the sum is 39.

The square root of 16123899 is about 4015.4575081801. The cubic root of 16123899 is about 252.6329672507.

The spelling of 16123899 in words is "sixteen million, one hundred twenty-three thousand, eight hundred ninety-nine".