513032242 has 4 divisors (see below), whose sum is σ = 769548366. Its totient is φ = 256516120.

The previous prime is 513032173. The next prime is 513032251. The reversal of 513032242 is 242230315.

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

It can be written as a sum of positive squares in only one way, i.e., 430604001 + 82428241 = 20751^2 + 9079^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 128258059 + ... + 128258062.

Almost surely, 2^513032242 is an apocalyptic number.

513032242 is a deficient number, since it is larger than the sum of its proper divisors (256516124).

513032242 is a wasteful number, since it uses less digits than its factorization.

513032242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256516123.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 513032242 is about 22650.2150541667. The cubic root of 513032242 is about 800.5372651436.

Adding to 513032242 its reverse (242230315), we get a palindrome (755262557).

The spelling of 513032242 in words is "five hundred thirteen million, thirty-two thousand, two hundred forty-two".