273148397657 has 2 divisors, whose sum is σ = 273148397658. Its totient is φ = 273148397656.

The previous prime is 273148397653. The next prime is 273148397707. The reversal of 273148397657 is 756793841372.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 246377220496 + 26771177161 = 496364^2 + 163619^2 .

It is a cyclic number.

It is not a de Polignac number, because 273148397657 - 2² = 273148397653 is a prime.

It is a super-2 number, since 2×273148397657² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 273148397657.

It is not a weakly prime, because it can be changed into another prime (273148397653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136574198828 + 136574198829.

It is an arithmetic number, because the mean of its divisors is an integer number (136574198829).

Almost surely, 2^273148397657 is an apocalyptic number.

It is an amenable number.

273148397657 is a deficient number, since it is larger than the sum of its proper divisors (1).

273148397657 is an equidigital number, since it uses as much as digits as its factorization.

273148397657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 53343360, while the sum is 62.

The spelling of 273148397657 in words is "two hundred seventy-three billion, one hundred forty-eight million, three hundred ninety-seven thousand, six hundred fifty-seven".