275145329 has 2 divisors, whose sum is σ = 275145330. Its totient is φ = 275145328.

The previous prime is 275145317. The next prime is 275145331. The reversal of 275145329 is 923541572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 260338225 + 14807104 = 16135^2 + 3848^2 .

It is a cyclic number.

It is not a de Polignac number, because 275145329 - 2²⁸ = 6709873 is a prime.

Together with 275145331, 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 = 275145292 and 275145301.

It is not a weakly prime, because it can be changed into another prime (275145529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137572664 + 137572665.

It is an arithmetic number, because the mean of its divisors is an integer number (137572665).

Almost surely, 2^275145329 is an apocalyptic number.

It is an amenable number.

275145329 is a deficient number, since it is larger than the sum of its proper divisors (1).

275145329 is an equidigital number, since it uses as much as digits as its factorization.

275145329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 38.

The square root of 275145329 is about 16587.5052072335. The cubic root of 275145329 is about 650.4102569822.

The spelling of 275145329 in words is "two hundred seventy-five million, one hundred forty-five thousand, three hundred twenty-nine".