516454871 has 4 divisors (see below), whose sum is σ = 516650472. Its totient is φ = 516259272.

The previous prime is 516454831. The next prime is 516454877. The reversal of 516454871 is 178454615.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 178454615 = 5 ⋅35690923.

It is a cyclic number.

It is not a de Polignac number, because 516454871 - 2¹⁸ = 516192727 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 (516454877) 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, 93785 + ... + 99138.

It is an arithmetic number, because the mean of its divisors is an integer number (129162618).

Almost surely, 2^516454871 is an apocalyptic number.

516454871 is a deficient number, since it is larger than the sum of its proper divisors (195601).

516454871 is a wasteful number, since it uses less digits than its factorization.

516454871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195600.

The product of its digits is 134400, while the sum is 41.

The square root of 516454871 is about 22725.6434672376. The cubic root of 516454871 is about 802.3135482311.

The spelling of 516454871 in words is "five hundred sixteen million, four hundred fifty-four thousand, eight hundred seventy-one".