540386851 has 4 divisors (see below), whose sum is σ = 540882352. Its totient is φ = 539891352.

The previous prime is 540386843. The next prime is 540386857. The reversal of 540386851 is 158683045.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 540386851 - 2³ = 540386843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540386857) 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, 246111 + ... + 248296.

It is an arithmetic number, because the mean of its divisors is an integer number (135220588).

Almost surely, 2^540386851 is an apocalyptic number.

540386851 is a deficient number, since it is larger than the sum of its proper divisors (495501).

540386851 is a wasteful number, since it uses less digits than its factorization.

540386851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495500.

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 540386851 is about 23246.2222952462. Note that the first 4 decimals coincide. The cubic root of 540386851 is about 814.5196969256.

The spelling of 540386851 in words is "five hundred forty million, three hundred eighty-six thousand, eight hundred fifty-one".