1365020043 has 8 divisors (see below), whose sum is σ = 1824780288. Its totient is φ = 907636584.

The previous prime is 1365020009. The next prime is 1365020071. The reversal of 1365020043 is 3400205631.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1365020043 - 2¹⁴ = 1365003659 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1365019995 and 1365020022.

It is not an unprimeable number, because it can be changed into a prime (1365020443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 592855 + ... + 595152.

It is an arithmetic number, because the mean of its divisors is an integer number (228097536).

Almost surely, 2^1365020043 is an apocalyptic number.

1365020043 is a deficient number, since it is larger than the sum of its proper divisors (459760245).

1365020043 is a wasteful number, since it uses less digits than its factorization.

1365020043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1188393.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 1365020043 is about 36946.1776507395. The cubic root of 1365020043 is about 1109.2931795854.

Adding to 1365020043 its reverse (3400205631), we get a palindrome (4765225674).

The spelling of 1365020043 in words is "one billion, three hundred sixty-five million, twenty thousand, forty-three".