161061273 has 48 divisors (see below), whose sum is σ = 250398720. Its totient is φ = 99574272.

The previous prime is 161061269. The next prime is 161061283. The reversal of 161061273 is 372160161.

161061273 is nontrivially palindromic in base 2 and base 16.

161061273 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

161061273 is an esthetic number in base 4, because in such base its adjacent digits differ by 1.

It is not a de Polignac number, because 161061273 - 2² = 161061269 is a prime.

161061273 is an undulating number in base 4.

161061273 is a nontrivial repdigit in base 16.

It is a plaindrome in base 16.

It is a nialpdrome in base 16.

It is a zygodrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (161061283) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1268136 + ... + 1268262.

It is an arithmetic number, because the mean of its divisors is an integer number (5216640).

Almost surely, 2^161061273 is an apocalyptic number.

It is an amenable number.

161061273 is a deficient number, since it is larger than the sum of its proper divisors (89337447).

161061273 is a wasteful number, since it uses less digits than its factorization.

161061273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 315 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 161061273 is about 12690.9918052136. The cubic root of 161061273 is about 544.0811867459.

The spelling of 161061273 in words is "one hundred sixty-one million, sixty-one thousand, two hundred seventy-three".