16540829 has 2 divisors, whose sum is σ = 16540830. Its totient is φ = 16540828.

The previous prime is 16540819. The next prime is 16540831. The reversal of 16540829 is 92804561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9597604 + 6943225 = 3098^2 + 2635^2 .

It is an emirp because it is prime and its reverse (92804561) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16540829 is a prime.

Together with 16540831, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16540819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8270414 + 8270415.

It is an arithmetic number, because the mean of its divisors is an integer number (8270415).

Almost surely, 2^16540829 is an apocalyptic number.

It is an amenable number.

16540829 is a deficient number, since it is larger than the sum of its proper divisors (1).

16540829 is an equidigital number, since it uses as much as digits as its factorization.

16540829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 16540829 is about 4067.0417996377. The cubic root of 16540829 is about 254.7919820907.

The spelling of 16540829 in words is "sixteen million, five hundred forty thousand, eight hundred twenty-nine".