545416161 has 4 divisors (see below), whose sum is σ = 727221552. Its totient is φ = 363610772.

The previous prime is 545416133. The next prime is 545416177. The reversal of 545416161 is 161614545.

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.

It is a cyclic number.

It is not a de Polignac number, because 545416161 - 2¹⁷ = 545285089 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (545416121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90902691 + ... + 90902696.

It is an arithmetic number, because the mean of its divisors is an integer number (181805388).

Almost surely, 2^545416161 is an apocalyptic number.

It is an amenable number.

545416161 is a deficient number, since it is larger than the sum of its proper divisors (181805391).

545416161 is a wasteful number, since it uses less digits than its factorization.

545416161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181805390.

The product of its digits is 14400, while the sum is 33.

The square root of 545416161 is about 23354.1465483113. The cubic root of 545416161 is about 817.0387743294.

The spelling of 545416161 in words is "five hundred forty-five million, four hundred sixteen thousand, one hundred sixty-one".