273488161 has 2 divisors, whose sum is σ = 273488162. Its totient is φ = 273488160.

The previous prime is 273488153. The next prime is 273488167. The reversal of 273488161 is 161884372.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 244328161 + 29160000 = 15631^2 + 5400^2 .

It is a cyclic number.

It is not a de Polignac number, because 273488161 - 2³ = 273488153 is a prime.

It is not a weakly prime, because it can be changed into another prime (273488167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136744080 + 136744081.

It is an arithmetic number, because the mean of its divisors is an integer number (136744081).

Almost surely, 2^273488161 is an apocalyptic number.

It is an amenable number.

273488161 is a deficient number, since it is larger than the sum of its proper divisors (1).

273488161 is an equidigital number, since it uses as much as digits as its factorization.

273488161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64512, while the sum is 40.

The square root of 273488161 is about 16537.4774678607. The cubic root of 273488161 is about 649.1018451237.

The spelling of 273488161 in words is "two hundred seventy-three million, four hundred eighty-eight thousand, one hundred sixty-one".