271388497 has 2 divisors, whose sum is σ = 271388498. Its totient is φ = 271388496.

The previous prime is 271388489. The next prime is 271388521. The reversal of 271388497 is 794883172.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 190550416 + 80838081 = 13804^2 + 8991^2 .

It is a cyclic number.

It is not a de Polignac number, because 271388497 - 2³ = 271388489 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 271388497.

It is not a weakly prime, because it can be changed into another prime (271388197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135694248 + 135694249.

It is an arithmetic number, because the mean of its divisors is an integer number (135694249).

Almost surely, 2^271388497 is an apocalyptic number.

It is an amenable number.

271388497 is a deficient number, since it is larger than the sum of its proper divisors (1).

271388497 is an equidigital number, since it uses as much as digits as its factorization.

271388497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 677376, while the sum is 49.

The square root of 271388497 is about 16473.8731632849. The cubic root of 271388497 is about 647.4364487947.

The spelling of 271388497 in words is "two hundred seventy-one million, three hundred eighty-eight thousand, four hundred ninety-seven".