1152426013 has 4 divisors (see below), whose sum is σ = 1183572700. Its totient is φ = 1121279328.

The previous prime is 1152425987. The next prime is 1152426049. The reversal of 1152426013 is 3106242511.

It is a happy number.

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 737774244 + 414651769 = 27162^2 + 20363^2 .

It is a cyclic number.

It is not a de Polignac number, because 1152426013 - 2²⁵ = 1118871581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1152426113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15573288 + ... + 15573361.

It is an arithmetic number, because the mean of its divisors is an integer number (295893175).

Almost surely, 2^1152426013 is an apocalyptic number.

It is an amenable number.

1152426013 is a deficient number, since it is larger than the sum of its proper divisors (31146687).

1152426013 is an equidigital number, since it uses as much as digits as its factorization.

1152426013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31146686.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1152426013 is about 33947.4006810536. The cubic root of 1152426013 is about 1048.4257628117.

Adding to 1152426013 its reverse (3106242511), we get a palindrome (4258668524).

The spelling of 1152426013 in words is "one billion, one hundred fifty-two million, four hundred twenty-six thousand, thirteen".