16532149 has 4 divisors (see below), whose sum is σ = 16543180. Its totient is φ = 16521120.

The previous prime is 16532141. The next prime is 16532161. The reversal of 16532149 is 94123561.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 16056049 + 476100 = 4007^2 + 690^2 .

It is a cyclic number.

It is not a de Polignac number, because 16532149 - 2³ = 16532141 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16532149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16532141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2832 + ... + 6409.

It is an arithmetic number, because the mean of its divisors is an integer number (4135795).

Almost surely, 2^16532149 is an apocalyptic number.

It is an amenable number.

16532149 is a deficient number, since it is larger than the sum of its proper divisors (11031).

16532149 is an equidigital number, since it uses as much as digits as its factorization.

16532149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11030.

The product of its digits is 6480, while the sum is 31.

The square root of 16532149 is about 4065.9745449277. The cubic root of 16532149 is about 254.7474059015.

The spelling of 16532149 in words is "sixteen million, five hundred thirty-two thousand, one hundred forty-nine".