518861461 has 4 divisors (see below), whose sum is σ = 518975424. Its totient is φ = 518747500.

The previous prime is 518861411. The next prime is 518861489. The reversal of 518861461 is 164168815.

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.

It is a cyclic number.

It is not a de Polignac number, because 518861461 - 2¹¹ = 518859413 is a prime.

It is a super-2 number, since 2×518861461² = 538434431422109042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518861411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49855 + ... + 59356.

It is an arithmetic number, because the mean of its divisors is an integer number (129743856).

Almost surely, 2^518861461 is an apocalyptic number.

It is an amenable number.

518861461 is a deficient number, since it is larger than the sum of its proper divisors (113963).

518861461 is a wasteful number, since it uses less digits than its factorization.

518861461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113962.

The product of its digits is 46080, while the sum is 40.

The square root of 518861461 is about 22778.5307032741. The cubic root of 518861461 is about 803.5578314424.

The spelling of 518861461 in words is "five hundred eighteen million, eight hundred sixty-one thousand, four hundred sixty-one".