540606645 has 12 divisors (see below), whose sum is σ = 937051596. Its totient is φ = 288323520.

The previous prime is 540606617. The next prime is 540606701. The reversal of 540606645 is 546606045.

It is a happy number.

540606645 is a `hidden beast` number, since 5 + 4 + 0 + 6 + 0 + 6 + 645 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 256448196 + 284158449 = 16014^2 + 16857^2 .

It is not a de Polignac number, because 540606645 - 2⁶ = 540606581 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6006696 + ... + 6006785.

It is an arithmetic number, because the mean of its divisors is an integer number (78087633).

Almost surely, 2^540606645 is an apocalyptic number.

It is an amenable number.

540606645 is a deficient number, since it is larger than the sum of its proper divisors (396444951).

540606645 is a wasteful number, since it uses less digits than its factorization.

540606645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12013492 (or 12013489 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 540606645 is about 23250.9493354573. The cubic root of 540606645 is about 814.6301130564.

The spelling of 540606645 in words is "five hundred forty million, six hundred six thousand, six hundred forty-five".