1365064563 has 16 divisors (see below), whose sum is σ = 1844107776. Its totient is φ = 898057440.

The previous prime is 1365064553. The next prime is 1365064577. The reversal of 1365064563 is 3654605631.

It is a happy number.

It is not a de Polignac number, because 1365064563 - 2²⁶ = 1297955699 is a prime.

It is a super-2 number, since 2×1365064563² = 3726802522316761938, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1365064523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261606 + ... + 266772.

It is an arithmetic number, because the mean of its divisors is an integer number (115256736).

Almost surely, 2^1365064563 is an apocalyptic number.

1365064563 is a deficient number, since it is larger than the sum of its proper divisors (479043213).

1365064563 is a wasteful number, since it uses less digits than its factorization.

1365064563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6314.

The product of its (nonzero) digits is 194400, while the sum is 39.

The square root of 1365064563 is about 36946.7801438772. The cubic root of 1365064563 is about 1109.3052392851.

The spelling of 1365064563 in words is "one billion, three hundred sixty-five million, sixty-four thousand, five hundred sixty-three".