540431001 has 32 divisors (see below), whose sum is σ = 875888640. Its totient is φ = 326610000.

The previous prime is 540430997. The next prime is 540431033. The reversal of 540431001 is 100134045.

It is a happy number.

It is not a de Polignac number, because 540431001 - 2² = 540430997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (540431081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111376 + ... + 116126.

It is an arithmetic number, because the mean of its divisors is an integer number (27371520).

Almost surely, 2^540431001 is an apocalyptic number.

It is an amenable number.

540431001 is a deficient number, since it is larger than the sum of its proper divisors (335457639).

540431001 is a wasteful number, since it uses less digits than its factorization.

540431001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5154 (or 5148 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 540431001 is about 23247.1718925120. The cubic root of 540431001 is about 814.5418786060.

Adding to 540431001 its reverse (100134045), we get a palindrome (640565046).

The spelling of 540431001 in words is "five hundred forty million, four hundred thirty-one thousand, one".