16099229 has 4 divisors (see below), whose sum is σ = 16339584. Its totient is φ = 15858876.

The previous prime is 16099217. The next prime is 16099231. The reversal of 16099229 is 92299061.

16099229 = 177² + 178² + ... + 377².

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92299061 = 263 ⋅350947.

It is a cyclic number.

It is not a de Polignac number, because 16099229 - 2²⁰ = 15050653 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16099192 and 16099201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16099529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120077 + ... + 120210.

It is an arithmetic number, because the mean of its divisors is an integer number (4084896).

Almost surely, 2^16099229 is an apocalyptic number.

It is an amenable number.

16099229 is a deficient number, since it is larger than the sum of its proper divisors (240355).

16099229 is an equidigital number, since it uses as much as digits as its factorization.

16099229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240354.

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 16099229 is about 4012.3844531650. The cubic root of 16099229 is about 252.5040563999.

The spelling of 16099229 in words is "sixteen million, ninety-nine thousand, two hundred twenty-nine".