275194247 has 2 divisors, whose sum is σ = 275194248. Its totient is φ = 275194246.

The previous prime is 275194217. The next prime is 275194273. The reversal of 275194247 is 742491572.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 275194247 - 2¹⁴ = 275177863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (275194217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137597123 + 137597124.

It is an arithmetic number, because the mean of its divisors is an integer number (137597124).

Almost surely, 2^275194247 is an apocalyptic number.

275194247 is a deficient number, since it is larger than the sum of its proper divisors (1).

275194247 is an equidigital number, since it uses as much as digits as its factorization.

275194247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 41.

The square root of 275194247 is about 16588.9796853212. The cubic root of 275194247 is about 650.4488001086.

The spelling of 275194247 in words is "two hundred seventy-five million, one hundred ninety-four thousand, two hundred forty-seven".