540645437 has 8 divisors (see below), whose sum is σ = 571656960. Its totient is φ = 509889600.

The previous prime is 540645431. The next prime is 540645439. The reversal of 540645437 is 734546045.

It is a happy number.

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 540645437 - 2¹² = 540641341 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 540645437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540645431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59564 + ... + 68037.

It is an arithmetic number, because the mean of its divisors is an integer number (71457120).

Almost surely, 2^540645437 is an apocalyptic number.

It is an amenable number.

540645437 is a deficient number, since it is larger than the sum of its proper divisors (31011523).

540645437 is a wasteful number, since it uses less digits than its factorization.

540645437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127843.

The product of its (nonzero) digits is 201600, while the sum is 38.

The square root of 540645437 is about 23251.7835229902. The cubic root of 540645437 is about 814.6495975718.

The spelling of 540645437 in words is "five hundred forty million, six hundred forty-five thousand, four hundred thirty-seven".