540313531 has 2 divisors, whose sum is σ = 540313532. Its totient is φ = 540313530.

The previous prime is 540313481. The next prime is 540313537. The reversal of 540313531 is 135313045.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 540313531 - 2¹⁷ = 540182459 is a prime.

It is a super-2 number, since 2×540313531² = 583877423563375922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 540313496 and 540313505.

It is not a weakly prime, because it can be changed into another prime (540313537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270156765 + 270156766.

It is an arithmetic number, because the mean of its divisors is an integer number (270156766).

Almost surely, 2^540313531 is an apocalyptic number.

540313531 is a deficient number, since it is larger than the sum of its proper divisors (1).

540313531 is an equidigital number, since it uses as much as digits as its factorization.

540313531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 540313531 is about 23244.6452113169. The cubic root of 540313531 is about 814.4828570918.

Adding to 540313531 its reverse (135313045), we get a palindrome (675626576).

The spelling of 540313531 in words is "five hundred forty million, three hundred thirteen thousand, five hundred thirty-one".