540612231 has 8 divisors (see below), whose sum is σ = 730690800. Its totient is φ = 355470912.

The previous prime is 540612199. The next prime is 540612239. The reversal of 540612231 is 132216045.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 540612231 - 2⁵ = 540612199 is a prime.

It is a super-2 number, since 2×540612231² = 584523168613594722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540612239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1234056 + ... + 1234493.

It is an arithmetic number, because the mean of its divisors is an integer number (91336350).

Almost surely, 2^540612231 is an apocalyptic number.

540612231 is a deficient number, since it is larger than the sum of its proper divisors (190078569).

540612231 is a wasteful number, since it uses less digits than its factorization.

540612231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2468625.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 540612231 is about 23251.0694592743. The cubic root of 540612231 is about 814.6329188599.

Adding to 540612231 its reverse (132216045), we get a palindrome (672828276).

The spelling of 540612231 in words is "five hundred forty million, six hundred twelve thousand, two hundred thirty-one".