275277137 has 2 divisors, whose sum is σ = 275277138. Its totient is φ = 275277136.

The previous prime is 275277131. The next prime is 275277139. The reversal of 275277137 is 731772572.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 256992961 + 18284176 = 16031^2 + 4276^2 .

It is a cyclic number.

It is not a de Polignac number, because 275277137 - 2¹² = 275273041 is a prime.

Together with 275277139, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 275277094 and 275277103.

It is not a weakly prime, because it can be changed into another prime (275277131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137638568 + 137638569.

It is an arithmetic number, because the mean of its divisors is an integer number (137638569).

Almost surely, 2^275277137 is an apocalyptic number.

It is an amenable number.

275277137 is a deficient number, since it is larger than the sum of its proper divisors (1).

275277137 is an equidigital number, since it uses as much as digits as its factorization.

275277137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144060, while the sum is 41.

The square root of 275277137 is about 16591.4778425552. The cubic root of 275277137 is about 650.5140997885.

The spelling of 275277137 in words is "two hundred seventy-five million, two hundred seventy-seven thousand, one hundred thirty-seven".