16072549 has 2 divisors, whose sum is σ = 16072550. Its totient is φ = 16072548.

The previous prime is 16072547. The next prime is 16072559. The reversal of 16072549 is 94527061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15856324 + 216225 = 3982^2 + 465^2 .

It is an emirp because it is prime and its reverse (94527061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16072549 - 2¹ = 16072547 is a prime.

Together with 16072547, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16072547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8036274 + 8036275.

It is an arithmetic number, because the mean of its divisors is an integer number (8036275).

Almost surely, 2^16072549 is an apocalyptic number.

It is an amenable number.

16072549 is a deficient number, since it is larger than the sum of its proper divisors (1).

16072549 is an equidigital number, since it uses as much as digits as its factorization.

16072549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 16072549 is about 4009.0583682456. The cubic root of 16072549 is about 252.3644941654.

The spelling of 16072549 in words is "sixteen million, seventy-two thousand, five hundred forty-nine".