501135013 has 4 divisors (see below), whose sum is σ = 527510560. Its totient is φ = 474759468.

The previous prime is 501135007. The next prime is 501135049. The reversal of 501135013 is 310531105.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 310531105 = 5 ⋅62106221.

It is a cyclic number.

It is not a de Polignac number, because 501135013 - 2¹⁷ = 501003941 is a prime.

It is a super-2 number, since 2×501135013² = 502272602509020338, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 26375527 = 501135013 / (5 + 0 + 1 + 1 + 3 + 5 + 0 + 1 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501135053) by changing a digit.

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, 13187745 + ... + 13187782.

It is an arithmetic number, because the mean of its divisors is an integer number (131877640).

Almost surely, 2^501135013 is an apocalyptic number.

It is an amenable number.

501135013 is a deficient number, since it is larger than the sum of its proper divisors (26375547).

501135013 is a wasteful number, since it uses less digits than its factorization.

501135013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26375546.

The product of its (nonzero) digits is 225, while the sum is 19.

The square root of 501135013 is about 22386.0450504326. The cubic root of 501135013 is about 794.3006457272.

Adding to 501135013 its reverse (310531105), we get a palindrome (811666118).

The spelling of 501135013 in words is "five hundred one million, one hundred thirty-five thousand, thirteen".