16135849 has 2 divisors, whose sum is σ = 16135850. Its totient is φ = 16135848.

The previous prime is 16135817. The next prime is 16135901. The reversal of 16135849 is 94853161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11696400 + 4439449 = 3420^2 + 2107^2 .

It is a cyclic number.

It is not a de Polignac number, because 16135849 - 2⁵ = 16135817 is a prime.

It is not a weakly prime, because it can be changed into another prime (16135349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8067924 + 8067925.

It is an arithmetic number, because the mean of its divisors is an integer number (8067925).

Almost surely, 2^16135849 is an apocalyptic number.

It is an amenable number.

16135849 is a deficient number, since it is larger than the sum of its proper divisors (1).

16135849 is an equidigital number, since it uses as much as digits as its factorization.

16135849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 37.

The square root of 16135849 is about 4016.9452323874. The cubic root of 16135849 is about 252.6953636236.

The spelling of 16135849 in words is "sixteen million, one hundred thirty-five thousand, eight hundred forty-nine".