1365004873 has 4 divisors (see below), whose sum is σ = 1365097860. Its totient is φ = 1364911888.

The previous prime is 1365004829. The next prime is 1365004903. The reversal of 1365004873 is 3784005631.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3784005631 = 7 ⋅540572233.

It can be written as a sum of positive squares in 2 ways, for example, as 857494089 + 507510784 = 29283^2 + 22528^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1365004873 is a prime.

It is a super-2 number, since 2×1365004873² = 3726476606627492258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1365004073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19090 + ... + 55627.

It is an arithmetic number, because the mean of its divisors is an integer number (341274465).

Almost surely, 2^1365004873 is an apocalyptic number.

It is an amenable number.

1365004873 is a deficient number, since it is larger than the sum of its proper divisors (92987).

1365004873 is an equidigital number, since it uses as much as digits as its factorization.

1365004873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92986.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 1365004873 is about 36945.9723515297. The cubic root of 1365004873 is about 1109.2890702343.

The spelling of 1365004873 in words is "one billion, three hundred sixty-five million, four thousand, eight hundred seventy-three".