273945613 has 2 divisors, whose sum is σ = 273945614. Its totient is φ = 273945612.

The previous prime is 273945587. The next prime is 273945653. The reversal of 273945613 is 316549372.

It is a happy number.

It is an a-pointer prime, because the next prime (273945653) can be obtained adding 273945613 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 235530409 + 38415204 = 15347^2 + 6198^2 .

It is a cyclic number.

It is not a de Polignac number, because 273945613 - 2²¹ = 271848461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (273945653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136972806 + 136972807.

It is an arithmetic number, because the mean of its divisors is an integer number (136972807).

Almost surely, 2^273945613 is an apocalyptic number.

It is an amenable number.

273945613 is a deficient number, since it is larger than the sum of its proper divisors (1).

273945613 is an equidigital number, since it uses as much as digits as its factorization.

273945613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 40.

The square root of 273945613 is about 16551.3024563023. The cubic root of 273945613 is about 649.4635518659.

The spelling of 273945613 in words is "two hundred seventy-three million, nine hundred forty-five thousand, six hundred thirteen".