540835231 has 2 divisors, whose sum is σ = 540835232. Its totient is φ = 540835230.

The previous prime is 540835193. The next prime is 540835249. The reversal of 540835231 is 132538045.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 540835231 - 2¹⁵ = 540802463 is a prime.

It is a super-2 number, since 2×540835231² = 585005494181646722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 540835193 and 540835202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540835291) 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 as a sum of consecutive naturals, namely, 270417615 + 270417616.

It is an arithmetic number, because the mean of its divisors is an integer number (270417616).

Almost surely, 2^540835231 is an apocalyptic number.

540835231 is a deficient number, since it is larger than the sum of its proper divisors (1).

540835231 is an equidigital number, since it uses as much as digits as its factorization.

540835231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 540835231 is about 23255.8644431894. The cubic root of 540835231 is about 814.7449142100.

The spelling of 540835231 in words is "five hundred forty million, eight hundred thirty-five thousand, two hundred thirty-one".