275127997 has 2 divisors, whose sum is σ = 275127998. Its totient is φ = 275127996.

The previous prime is 275127977. The next prime is 275128013. The reversal of 275127997 is 799721572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 267028281 + 8099716 = 16341^2 + 2846^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-275127997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 275127997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (275127947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137563998 + 137563999.

It is an arithmetic number, because the mean of its divisors is an integer number (137563999).

Almost surely, 2^275127997 is an apocalyptic number.

It is an amenable number.

275127997 is a deficient number, since it is larger than the sum of its proper divisors (1).

275127997 is an equidigital number, since it uses as much as digits as its factorization.

275127997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 555660, while the sum is 49.

The square root of 275127997 is about 16586.9827575723. The cubic root of 275127997 is about 650.3965997786.

The spelling of 275127997 in words is "two hundred seventy-five million, one hundred twenty-seven thousand, nine hundred ninety-seven".