16199497 has 4 divisors (see below), whose sum is σ = 16212100. Its totient is φ = 16186896.

The previous prime is 16199483. The next prime is 16199527. The reversal of 16199497 is 79499161.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11451456 + 4748041 = 3384^2 + 2179^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16199497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16199437) 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, 4122 + ... + 7027.

It is an arithmetic number, because the mean of its divisors is an integer number (4053025).

Almost surely, 2^16199497 is an apocalyptic number.

It is an amenable number.

16199497 is a deficient number, since it is larger than the sum of its proper divisors (12603).

16199497 is a wasteful number, since it uses less digits than its factorization.

16199497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12602.

The product of its digits is 122472, while the sum is 46.

The square root of 16199497 is about 4024.8598733372. The cubic root of 16199497 is about 253.0271807571.

The spelling of 16199497 in words is "sixteen million, one hundred ninety-nine thousand, four hundred ninety-seven".