540963989 has 2 divisors, whose sum is σ = 540963990. Its totient is φ = 540963988.

The previous prime is 540963977. The next prime is 540964001. The reversal of 540963989 is 989369045.

It is a balanced prime because it is at equal distance from previous prime (540963977) and next prime (540964001).

It can be written as a sum of positive squares in only one way, i.e., 418529764 + 122434225 = 20458^2 + 11065^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-540963989 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 540963989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540963949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270481994 + 270481995.

It is an arithmetic number, because the mean of its divisors is an integer number (270481995).

Almost surely, 2^540963989 is an apocalyptic number.

It is an amenable number.

540963989 is a deficient number, since it is larger than the sum of its proper divisors (1).

540963989 is an equidigital number, since it uses as much as digits as its factorization.

540963989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2099520, while the sum is 53.

The square root of 540963989 is about 23258.6325694354. The cubic root of 540963989 is about 814.8095652015.

It can be divided in two parts, 54096 and 3989, that added together give a palindrome (58085).

The spelling of 540963989 in words is "five hundred forty million, nine hundred sixty-three thousand, nine hundred eighty-nine".