540870653 has 2 divisors, whose sum is σ = 540870654. Its totient is φ = 540870652.

The previous prime is 540870643. The next prime is 540870683. The reversal of 540870653 is 356078045.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 529828324 + 11042329 = 23018^2 + 3323^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-540870653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540870643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270435326 + 270435327.

It is an arithmetic number, because the mean of its divisors is an integer number (270435327).

Almost surely, 2^540870653 is an apocalyptic number.

It is an amenable number.

540870653 is a deficient number, since it is larger than the sum of its proper divisors (1).

540870653 is an equidigital number, since it uses as much as digits as its factorization.

540870653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 540870653 is about 23256.6260020666. The cubic root of 540870653 is about 814.7627010594.

The spelling of 540870653 in words is "five hundred forty million, eight hundred seventy thousand, six hundred fifty-three".