540813161 has 8 divisors (see below), whose sum is σ = 631223040. Its totient is φ = 453691008.

The previous prime is 540813157. The next prime is 540813167. The reversal of 540813161 is 161318045.

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 540813161 - 2² = 540813157 is a prime.

It is a super-2 number, since 2×540813161² = 584957750221623842, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (540813167) 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, 821576 + ... + 822233.

It is an arithmetic number, because the mean of its divisors is an integer number (78902880).

Almost surely, 2^540813161 is an apocalyptic number.

It is an amenable number.

540813161 is a deficient number, since it is larger than the sum of its proper divisors (90409879).

540813161 is a wasteful number, since it uses less digits than its factorization.

540813161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1643863.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 540813161 is about 23255.3899343787. The cubic root of 540813161 is about 814.7338315587.

The spelling of 540813161 in words is "five hundred forty million, eight hundred thirteen thousand, one hundred sixty-one".