16849013 has 2 divisors, whose sum is σ = 16849014. Its totient is φ = 16849012.

The previous prime is 16849009. The next prime is 16849061. The reversal of 16849013 is 31094861.

16849013 = 2902² + 2903².

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8427409 + 8421604 = 2903^2 + 2902^2 .

It is a cyclic number.

It is not a de Polignac number, because 16849013 - 2² = 16849009 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16849003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8424506 + 8424507.

It is an arithmetic number, because the mean of its divisors is an integer number (8424507).

Almost surely, 2^16849013 is an apocalyptic number.

16849013 is the 2903-rd centered square number.

It is an amenable number.

16849013 is a deficient number, since it is larger than the sum of its proper divisors (1).

16849013 is an equidigital number, since it uses as much as digits as its factorization.

16849013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 16849013 is about 4104.7549256929. The cubic root of 16849013 is about 256.3646587420.

The spelling of 16849013 in words is "sixteen million, eight hundred forty-nine thousand, thirteen".