1365243513 has 16 divisors (see below), whose sum is σ = 1847128320. Its totient is φ = 896854784.

The previous prime is 1365243493. The next prime is 1365243521. The reversal of 1365243513 is 3153425631.

It is not a de Polignac number, because 1365243513 - 2⁶ = 1365243449 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1365243533) 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, 47008 + ... + 70286.

It is an arithmetic number, because the mean of its divisors is an integer number (115445520).

Almost surely, 2^1365243513 is an apocalyptic number.

It is an amenable number.

1365243513 is a deficient number, since it is larger than the sum of its proper divisors (481884807).

1365243513 is a wasteful number, since it uses less digits than its factorization.

1365243513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23568.

The product of its digits is 32400, while the sum is 33.

The square root of 1365243513 is about 36949.2017911077. The cubic root of 1365243513 is about 1109.3537111069.

The spelling of 1365243513 in words is "one billion, three hundred sixty-five million, two hundred forty-three thousand, five hundred thirteen".