503139242 has 8 divisors (see below), whose sum is σ = 799103556. Its totient is φ = 236771392.

The previous prime is 503139223. The next prime is 503139253. The reversal of 503139242 is 242931305.

It can be written as a sum of positive squares in 2 ways, for example, as 391604521 + 111534721 = 19789^2 + 10561^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7399073 + ... + 7399140.

Almost surely, 2^503139242 is an apocalyptic number.

503139242 is a deficient number, since it is larger than the sum of its proper divisors (295964314).

503139242 is a wasteful number, since it uses less digits than its factorization.

503139242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14798232.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 503139242 is about 22430.7655241635. The cubic root of 503139242 is about 795.3581403917.

The spelling of 503139242 in words is "five hundred three million, one hundred thirty-nine thousand, two hundred forty-two".