540021502430149 has 8 divisors (see below), whose sum is σ = 558655455740760. Its totient is φ = 521388383932416.

The previous prime is 540021502430141. The next prime is 540021502430161. The reversal of 540021502430149 is 941034205120045.

It can be written as a sum of positive squares in 4 ways, for example, as 5381207586049 + 534640294844100 = 2319743^2 + 23122290^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 540021502430149 - 2³ = 540021502430141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540021502430141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207387004 + ... + 209974789.

It is an arithmetic number, because the mean of its divisors is an integer number (69831931967595).

Almost surely, 2^{540021502430149} is an apocalyptic number.

It is an amenable number.

540021502430149 is a deficient number, since it is larger than the sum of its proper divisors (18633953310611).

540021502430149 is a wasteful number, since it uses less digits than its factorization.

540021502430149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417406439.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 540021502430149 in words is "five hundred forty trillion, twenty-one billion, five hundred two million, four hundred thirty thousand, one hundred forty-nine".