275210813 has 2 divisors, whose sum is σ = 275210814. Its totient is φ = 275210812.

The previous prime is 275210797. The next prime is 275210849. The reversal of 275210813 is 318012572.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 192709924 + 82500889 = 13882^2 + 9083^2 .

It is a cyclic number.

It is not a de Polignac number, because 275210813 - 2⁴ = 275210797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (275210863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137605406 + 137605407.

It is an arithmetic number, because the mean of its divisors is an integer number (137605407).

Almost surely, 2^275210813 is an apocalyptic number.

It is an amenable number.

275210813 is a deficient number, since it is larger than the sum of its proper divisors (1).

275210813 is an equidigital number, since it uses as much as digits as its factorization.

275210813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 275210813 is about 16589.4789851882. The cubic root of 275210813 is about 650.4618516394.

The spelling of 275210813 in words is "two hundred seventy-five million, two hundred ten thousand, eight hundred thirteen".