16021199 has 8 divisors (see below), whose sum is σ = 17040240. Its totient is φ = 15019776.

The previous prime is 16021193. The next prime is 16021231. The reversal of 16021199 is 99112061.

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 16021199 - 2⁸ = 16020943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16021193) 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, 2504 + ... + 6189.

It is an arithmetic number, because the mean of its divisors is an integer number (2130030).

Almost surely, 2^16021199 is an apocalyptic number.

16021199 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

16021199 is a deficient number, since it is larger than the sum of its proper divisors (1019041).

16021199 is an equidigital number, since it uses as much as digits as its factorization.

16021199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8809.

The product of its (nonzero) digits is 972, while the sum is 29.

The square root of 16021199 is about 4002.6489978513. The cubic root of 16021199 is about 252.0954486417.

The spelling of 16021199 in words is "sixteen million, twenty-one thousand, one hundred ninety-nine".