275041649 has 2 divisors, whose sum is σ = 275041650. Its totient is φ = 275041648.

The previous prime is 275041639. The next prime is 275041651. The reversal of 275041649 is 946140572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144168049 + 130873600 = 12007^2 + 11440^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-275041649 is a prime.

Together with 275041651, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_14970971 and since 275041649 and 14970971 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (275041639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137520824 + 137520825.

It is an arithmetic number, because the mean of its divisors is an integer number (137520825).

Almost surely, 2^275041649 is an apocalyptic number.

It is an amenable number.

275041649 is a deficient number, since it is larger than the sum of its proper divisors (1).

275041649 is an equidigital number, since it uses as much as digits as its factorization.

275041649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 275041649 is about 16584.3796688330. The cubic root of 275041649 is about 650.3285510613.

The spelling of 275041649 in words is "two hundred seventy-five million, forty-one thousand, six hundred forty-nine".