8140369 has 2 divisors, whose sum is σ = 8140370. Its totient is φ = 8140368.

The previous prime is 8140361. The next prime is 8140381. The reversal of 8140369 is 9630418.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4579600 + 3560769 = 2140^2 + 1887^2 .

It is a cyclic number.

It is not a de Polignac number, because 8140369 - 2³ = 8140361 is a prime.

It is a super-2 number, since 2×8140369² = 132531214912322, which contains 22 as substring.

It is a Chen prime.

It is equal to p₅₄₈₅₅₄ and since 8140369 and 548554 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8140369.

It is not a weakly prime, because it can be changed into another prime (8140361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4070184 + 4070185.

It is an arithmetic number, because the mean of its divisors is an integer number (4070185).

Almost surely, 2^8140369 is an apocalyptic number.

It is an amenable number.

8140369 is a deficient number, since it is larger than the sum of its proper divisors (1).

8140369 is an equidigital number, since it uses as much as digits as its factorization.

8140369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 8140369 is about 2853.1331900211. The cubic root of 8140369 is about 201.1629661083.

The spelling of 8140369 in words is "eight million, one hundred forty thousand, three hundred sixty-nine".