513871061 has 8 divisors (see below), whose sum is σ = 570088800. Its totient is φ = 459237040.

The previous prime is 513871049. The next prime is 513871073. The reversal of 513871061 is 160178315.

It is an interprime number because it is at equal distance from previous prime (513871049) and next prime (513871073).

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

It is a cyclic number.

It is not a de Polignac number, because 513871061 - 2⁶ = 513870997 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 (513871261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 395246 + ... + 396543.

It is an arithmetic number, because the mean of its divisors is an integer number (71261100).

Almost surely, 2^513871061 is an apocalyptic number.

It is an amenable number.

513871061 is a deficient number, since it is larger than the sum of its proper divisors (56217739).

513871061 is a wasteful number, since it uses less digits than its factorization.

513871061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791859.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 513871061 is about 22668.7242914108. The cubic root of 513871061 is about 800.9733262523.

The spelling of 513871061 in words is "five hundred thirteen million, eight hundred seventy-one thousand, sixty-one".