518453745 has 16 divisors (see below), whose sum is σ = 830512320. Its totient is φ = 276179904.

The previous prime is 518453729. The next prime is 518453753. The reversal of 518453745 is 547354815.

It is a happy number.

It is not a de Polignac number, because 518453745 - 2⁴ = 518453729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 518453697 and 518453706.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7234 + ... + 33003.

It is an arithmetic number, because the mean of its divisors is an integer number (51907020).

Almost surely, 2^518453745 is an apocalyptic number.

It is an amenable number.

518453745 is a deficient number, since it is larger than the sum of its proper divisors (312058575).

518453745 is a wasteful number, since it uses less digits than its factorization.

518453745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41104.

The product of its digits is 336000, while the sum is 42.

The square root of 518453745 is about 22769.5793768791. The cubic root of 518453745 is about 803.3473004617.

The spelling of 518453745 in words is "five hundred eighteen million, four hundred fifty-three thousand, seven hundred forty-five".