540146489 has 4 divisors (see below), whose sum is σ = 558772260. Its totient is φ = 521520720.

The previous prime is 540146471. The next prime is 540146531. The reversal of 540146489 is 984641045.

540146489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 112360000 + 427786489 = 10600^2 + 20683^2 .

It is a cyclic number.

It is not a de Polignac number, because 540146489 - 2¹⁶ = 540080953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540136489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9312842 + ... + 9312899.

It is an arithmetic number, because the mean of its divisors is an integer number (139693065).

Almost surely, 2^540146489 is an apocalyptic number.

It is an amenable number.

540146489 is a deficient number, since it is larger than the sum of its proper divisors (18625771).

540146489 is a wasteful number, since it uses less digits than its factorization.

540146489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18625770.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 540146489 is about 23241.0518049420. The cubic root of 540146489 is about 814.3989139362.

The spelling of 540146489 in words is "five hundred forty million, one hundred forty-six thousand, four hundred eighty-nine".