16812529 has 2 divisors, whose sum is σ = 16812530. Its totient is φ = 16812528.

The previous prime is 16812469. The next prime is 16812533. The reversal of 16812529 is 92521861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13126129 + 3686400 = 3623^2 + 1920^2 .

It is a cyclic number.

It is not a de Polignac number, because 16812529 - 2¹⁹ = 16288241 is a prime.

It is a super-2 number, since 2×16812529² = 565322262751682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16812494 and 16812503.

It is not a weakly prime, because it can be changed into another prime (16812539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8406264 + 8406265.

It is an arithmetic number, because the mean of its divisors is an integer number (8406265).

Almost surely, 2^16812529 is an apocalyptic number.

It is an amenable number.

16812529 is a deficient number, since it is larger than the sum of its proper divisors (1).

16812529 is an equidigital number, since it uses as much as digits as its factorization.

16812529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 34.

The square root of 16812529 is about 4100.3084030351. The cubic root of 16812529 is about 256.1794853369.

The spelling of 16812529 in words is "sixteen million, eight hundred twelve thousand, five hundred twenty-nine".