16087549 has 2 divisors, whose sum is σ = 16087550. Its totient is φ = 16087548.

The previous prime is 16087541. The next prime is 16087553. The reversal of 16087549 is 94578061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16040025 + 47524 = 4005^2 + 218^2 .

It is an emirp because it is prime and its reverse (94578061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16087549 - 2³ = 16087541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16087541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8043774 + 8043775.

It is an arithmetic number, because the mean of its divisors is an integer number (8043775).

Almost surely, 2^16087549 is an apocalyptic number.

It is an amenable number.

16087549 is a deficient number, since it is larger than the sum of its proper divisors (1).

16087549 is an equidigital number, since it uses as much as digits as its factorization.

16087549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 16087549 is about 4010.9286954520. The cubic root of 16087549 is about 252.4429776800.

The spelling of 16087549 in words is "sixteen million, eighty-seven thousand, five hundred forty-nine".