518214047 has 8 divisors (see below), whose sum is σ = 571688880. Its totient is φ = 466683840.

The previous prime is 518214023. The next prime is 518214049. The reversal of 518214047 is 740412815.

It is a happy number.

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 518214047 - 2²² = 514019743 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 (518214049) 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, 485597 + ... + 486662.

It is an arithmetic number, because the mean of its divisors is an integer number (71461110).

Almost surely, 2^518214047 is an apocalyptic number.

518214047 is a deficient number, since it is larger than the sum of its proper divisors (53474833).

518214047 is a wasteful number, since it uses less digits than its factorization.

518214047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972313.

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 518214047 is about 22764.3152104341. The cubic root of 518214047 is about 803.2234768636.

The spelling of 518214047 in words is "five hundred eighteen million, two hundred fourteen thousand, forty-seven".