275136493 has 2 divisors, whose sum is σ = 275136494. Its totient is φ = 275136492.

The previous prime is 275136487. The next prime is 275136503. The reversal of 275136493 is 394631572.

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., 243921924 + 31214569 = 15618^2 + 5587^2 .

It is a cyclic number.

It is not a de Polignac number, because 275136493 - 2¹⁷ = 275005421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (275136443) 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, 137568246 + 137568247.

It is an arithmetic number, because the mean of its divisors is an integer number (137568247).

Almost surely, 2^275136493 is an apocalyptic number.

It is an amenable number.

275136493 is a deficient number, since it is larger than the sum of its proper divisors (1).

275136493 is an equidigital number, since it uses as much as digits as its factorization.

275136493 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 275136493 is about 16587.2388600394. The cubic root of 275136493 is about 650.4032944961.

The spelling of 275136493 in words is "two hundred seventy-five million, one hundred thirty-six thousand, four hundred ninety-three".