273405061 has 2 divisors, whose sum is σ = 273405062. Its totient is φ = 273405060.

The previous prime is 273405059. The next prime is 273405107. The reversal of 273405061 is 160504372.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 158508100 + 114896961 = 12590^2 + 10719^2 .

It is a cyclic number.

It is not a de Polignac number, because 273405061 - 2¹ = 273405059 is a prime.

Together with 273405059, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (273405361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136702530 + 136702531.

It is an arithmetic number, because the mean of its divisors is an integer number (136702531).

Almost surely, 2^273405061 is an apocalyptic number.

It is an amenable number.

273405061 is a deficient number, since it is larger than the sum of its proper divisors (1).

273405061 is an equidigital number, since it uses as much as digits as its factorization.

273405061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 273405061 is about 16534.9648018978. The cubic root of 273405061 is about 649.0360947729.

The spelling of 273405061 in words is "two hundred seventy-three million, four hundred five thousand, sixty-one".