1152542450513 has 4 divisors (see below), whose sum is σ = 1171436589108. Its totient is φ = 1133648311920.

The previous prime is 1152542450503. The next prime is 1152542450533. The reversal of 1152542450513 is 3150542452511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 51707121664 + 1100835328849 = 227392^2 + 1049207^2 .

It is a cyclic number.

It is not a de Polignac number, because 1152542450513 - 2²⁰ = 1152541401937 is a prime.

It is a super-2 number, since 2×1152542450513² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1152542450503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9447069206 + ... + 9447069327.

It is an arithmetic number, because the mean of its divisors is an integer number (292859147277).

Almost surely, 2^{1152542450513} is an apocalyptic number.

It is an amenable number.

1152542450513 is a deficient number, since it is larger than the sum of its proper divisors (18894138595).

1152542450513 is an equidigital number, since it uses as much as digits as its factorization.

1152542450513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18894138594.

The product of its (nonzero) digits is 120000, while the sum is 38.

The spelling of 1152542450513 in words is "one trillion, one hundred fifty-two billion, five hundred forty-two million, four hundred fifty thousand, five hundred thirteen".