16249149 has 24 divisors (see below), whose sum is σ = 27110720. Its totient is φ = 9186048.

The previous prime is 16249147. The next prime is 16249157. The reversal of 16249149 is 94194261.

It is a happy number.

16249149 is a `hidden beast` number, since 162 + 491 + 4 + 9 = 666.

It is not a de Polignac number, because 16249149 - 2¹ = 16249147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16249147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4782 + ... + 7440.

Almost surely, 2^16249149 is an apocalyptic number.

It is an amenable number.

16249149 is a deficient number, since it is larger than the sum of its proper divisors (10861571).

16249149 is a wasteful number, since it uses less digits than its factorization.

16249149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2769 (or 2766 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 16249149 is about 4031.0233192082. The cubic root of 16249149 is about 253.2854293463.

The spelling of 16249149 in words is "sixteen million, two hundred forty-nine thousand, one hundred forty-nine".