16513093 has 4 divisors (see below), whose sum is σ = 17082540. Its totient is φ = 15943648.

The previous prime is 16513087. The next prime is 16513117. The reversal of 16513093 is 39031561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39031561 = 1151 ⋅33911.

It can be written as a sum of positive squares in 2 ways, for example, as 6640929 + 9872164 = 2577^2 + 3142^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16513093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16513073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 284680 + ... + 284737.

It is an arithmetic number, because the mean of its divisors is an integer number (4270635).

Almost surely, 2^16513093 is an apocalyptic number.

It is an amenable number.

16513093 is a deficient number, since it is larger than the sum of its proper divisors (569447).

16513093 is an equidigital number, since it uses as much as digits as its factorization.

16513093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569446.

The product of its (nonzero) digits is 2430, while the sum is 28.

The square root of 16513093 is about 4063.6305196216. The cubic root of 16513093 is about 254.6494889488.

The spelling of 16513093 in words is "sixteen million, five hundred thirteen thousand, ninety-three".