1145302013 has 4 divisors (see below), whose sum is σ = 1146374460. Its totient is φ = 1144229568.

The previous prime is 1145302001. The next prime is 1145302021. The reversal of 1145302013 is 3102035411.

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 826965049 + 318336964 = 28757^2 + 17842^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1145302013 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 (1145302073) 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, 534620 + ... + 536757.

It is an arithmetic number, because the mean of its divisors is an integer number (286593615).

Almost surely, 2^1145302013 is an apocalyptic number.

It is an amenable number.

1145302013 is a deficient number, since it is larger than the sum of its proper divisors (1072447).

1145302013 is a wasteful number, since it uses less digits than its factorization.

1145302013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072446.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1145302013 is about 33842.3109878743. The cubic root of 1145302013 is about 1046.2609300821.

Adding to 1145302013 its reverse (3102035411), we get a palindrome (4247337424).

The spelling of 1145302013 in words is "one billion, one hundred forty-five million, three hundred two thousand, thirteen".