530149813 has 4 divisors (see below), whose sum is σ = 530635948. Its totient is φ = 529663680.

The previous prime is 530149769. The next prime is 530149819. The reversal of 530149813 is 318941035.

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 525234724 + 4915089 = 22918^2 + 2217^2 .

It is a cyclic number.

It is not a de Polignac number, because 530149813 - 2¹³ = 530141621 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 (530149819) 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, 241428 + ... + 243613.

It is an arithmetic number, because the mean of its divisors is an integer number (132658987).

Almost surely, 2^530149813 is an apocalyptic number.

It is an amenable number.

530149813 is a deficient number, since it is larger than the sum of its proper divisors (486135).

530149813 is a wasteful number, since it uses less digits than its factorization.

530149813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486134.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 530149813 is about 23024.9823669856. The cubic root of 530149813 is about 809.3434770607.

The spelling of 530149813 in words is "five hundred thirty million, one hundred forty-nine thousand, eight hundred thirteen".