540908961 has 8 divisors (see below), whose sum is σ = 722336160. Its totient is φ = 360043872.

The previous prime is 540908923. The next prime is 540909001. The reversal of 540908961 is 169809045.

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

It is not a de Polignac number, because 540908961 - 2¹⁸ = 540646817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (540908161) 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, 138276 + ... + 142133.

It is an arithmetic number, because the mean of its divisors is an integer number (90292020).

Almost surely, 2^540908961 is an apocalyptic number.

It is an amenable number.

540908961 is a deficient number, since it is larger than the sum of its proper divisors (181427199).

540908961 is a wasteful number, since it uses less digits than its factorization.

540908961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281055.

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 540908961 is about 23257.4495807257. The cubic root of 540908961 is about 814.7819362145.

The spelling of 540908961 in words is "five hundred forty million, nine hundred eight thousand, nine hundred sixty-one".