513013703 has 4 divisors (see below), whose sum is σ = 513134928. Its totient is φ = 512892480.

The previous prime is 513013687. The next prime is 513013717. The reversal of 513013703 is 307310315.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 513013703 - 2⁴ = 513013687 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 (513013603) 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, 54026 + ... + 62807.

It is an arithmetic number, because the mean of its divisors is an integer number (128283732).

Almost surely, 2^513013703 is an apocalyptic number.

513013703 is a deficient number, since it is larger than the sum of its proper divisors (121225).

513013703 is a wasteful number, since it uses less digits than its factorization.

513013703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121224.

The product of its (nonzero) digits is 945, while the sum is 23.

The square root of 513013703 is about 22649.8058049070. The cubic root of 513013703 is about 800.5276222544.

The spelling of 513013703 in words is "five hundred thirteen million, thirteen thousand, seven hundred three".