542613161 has 4 divisors (see below), whose sum is σ = 550046292. Its totient is φ = 535180032.

The previous prime is 542613143. The next prime is 542613179. The reversal of 542613161 is 161316245.

It is a happy number.

542613161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 161316245 = 5 ⋅32263249.

It is an interprime number because it is at equal distance from previous prime (542613143) and next prime (542613179).

It can be written as a sum of positive squares in 2 ways, for example, as 183738025 + 358875136 = 13555^2 + 18944^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-542613161 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (542613061) 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, 3716456 + ... + 3716601.

It is an arithmetic number, because the mean of its divisors is an integer number (137511573).

Almost surely, 2^542613161 is an apocalyptic number.

It is an amenable number.

542613161 is a deficient number, since it is larger than the sum of its proper divisors (7433131).

542613161 is an equidigital number, since it uses as much as digits as its factorization.

542613161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7433130.

The product of its digits is 4320, while the sum is 29.

The square root of 542613161 is about 23294.0584913836. The cubic root of 542613161 is about 815.6367292608.

The spelling of 542613161 in words is "five hundred forty-two million, six hundred thirteen thousand, one hundred sixty-one".