540776161 has 4 divisors (see below), whose sum is σ = 564288192. Its totient is φ = 517264132.

The previous prime is 540776153. The next prime is 540776177. The reversal of 540776161 is 161677045.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 161677045 = 5 ⋅32335409.

It is a cyclic number.

It is not a de Polignac number, because 540776161 - 2³ = 540776153 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 540776161.

It is not an unprimeable number, because it can be changed into a prime (540776111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11755981 + ... + 11756026.

It is an arithmetic number, because the mean of its divisors is an integer number (141072048).

Almost surely, 2^540776161 is an apocalyptic number.

It is an amenable number.

540776161 is a deficient number, since it is larger than the sum of its proper divisors (23512031).

540776161 is a wasteful number, since it uses less digits than its factorization.

540776161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23512030.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 540776161 is about 23254.5944062673. The cubic root of 540776161 is about 814.7152509956.

The spelling of 540776161 in words is "five hundred forty million, seven hundred seventy-six thousand, one hundred sixty-one".