540163531 has 2 divisors, whose sum is σ = 540163532. Its totient is φ = 540163530.

The previous prime is 540163523. The next prime is 540163553. The reversal of 540163531 is 135361045.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 540163531 - 2³ = 540163523 is a prime.

It is a super-2 number, since 2×540163531² = 583553280444775922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 540163531.

It is not a weakly prime, because it can be changed into another prime (540163511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270081765 + 270081766.

It is an arithmetic number, because the mean of its divisors is an integer number (270081766).

Almost surely, 2^540163531 is an apocalyptic number.

540163531 is a deficient number, since it is larger than the sum of its proper divisors (1).

540163531 is an equidigital number, since it uses as much as digits as its factorization.

540163531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 540163531 is about 23241.4184377804. The cubic root of 540163531 is about 814.4074787981.

The spelling of 540163531 in words is "five hundred forty million, one hundred sixty-three thousand, five hundred thirty-one".