16249249 has 8 divisors (see below), whose sum is σ = 16621920. Its totient is φ = 15879936.

The previous prime is 16249223. The next prime is 16249271. The reversal of 16249249 is 94294261.

It is a happy number.

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 16249249 - 2⁹ = 16248737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16249279) 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, 10674 + ... + 12100.

It is an arithmetic number, because the mean of its divisors is an integer number (2077740).

Almost surely, 2^16249249 is an apocalyptic number.

It is an amenable number.

16249249 is a deficient number, since it is larger than the sum of its proper divisors (372671).

16249249 is a wasteful number, since it uses less digits than its factorization.

16249249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1679.

The product of its digits is 31104, while the sum is 37.

The square root of 16249249 is about 4031.0357229873. The cubic root of 16249249 is about 253.2859489323.

The spelling of 16249249 in words is "sixteen million, two hundred forty-nine thousand, two hundred forty-nine".