546842161 has 4 divisors (see below), whose sum is σ = 549294592. Its totient is φ = 544389732.

The previous prime is 546842123. The next prime is 546842171. The reversal of 546842161 is 161248645.

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: 161248645 = 5 ⋅32249729.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-546842161 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 546842161.

It is not an unprimeable number, because it can be changed into a prime (546842171) 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, 1225881 + ... + 1226326.

It is an arithmetic number, because the mean of its divisors is an integer number (137323648).

Almost surely, 2^546842161 is an apocalyptic number.

It is an amenable number.

546842161 is a deficient number, since it is larger than the sum of its proper divisors (2452431).

546842161 is a wasteful number, since it uses less digits than its factorization.

546842161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2452430.

The product of its digits is 46080, while the sum is 37.

The square root of 546842161 is about 23384.6565294425. The cubic root of 546842161 is about 817.7502086791.

The spelling of 546842161 in words is "five hundred forty-six million, eight hundred forty-two thousand, one hundred sixty-one".