275171969 has 2 divisors, whose sum is σ = 275171970. Its totient is φ = 275171968.

The previous prime is 275171957. The next prime is 275171983. The reversal of 275171969 is 969171572.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 252969025 + 22202944 = 15905^2 + 4712^2 .

It is a cyclic number.

It is not a de Polignac number, because 275171969 - 2²⁴ = 258394753 is a prime.

It is a super-2 number, since 2×275171969² = 151439225046673922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (275171909) 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, 137585984 + 137585985.

It is an arithmetic number, because the mean of its divisors is an integer number (137585985).

Almost surely, 2^275171969 is an apocalyptic number.

It is an amenable number.

275171969 is a deficient number, since it is larger than the sum of its proper divisors (1).

275171969 is an equidigital number, since it uses as much as digits as its factorization.

275171969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 238140, while the sum is 47.

The square root of 275171969 is about 16588.3082018631. The cubic root of 275171969 is about 650.4312475500.

The spelling of 275171969 in words is "two hundred seventy-five million, one hundred seventy-one thousand, nine hundred sixty-nine".