275136487 has 2 divisors, whose sum is σ = 275136488. Its totient is φ = 275136486.

The previous prime is 275136457. The next prime is 275136493. The reversal of 275136487 is 784631572.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 275136487 - 2²⁷ = 140918759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (275136437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137568243 + 137568244.

It is an arithmetic number, because the mean of its divisors is an integer number (137568244).

Almost surely, 2^275136487 is an apocalyptic number.

275136487 is a deficient number, since it is larger than the sum of its proper divisors (1).

275136487 is an equidigital number, since it uses as much as digits as its factorization.

275136487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 282240, while the sum is 43.

The square root of 275136487 is about 16587.2386791774. The cubic root of 275136487 is about 650.4032897683.

The spelling of 275136487 in words is "two hundred seventy-five million, one hundred thirty-six thousand, four hundred eighty-seven".