771134369 has 2 divisors, whose sum is σ = 771134370. Its totient is φ = 771134368.

The previous prime is 771134339. The next prime is 771134381. The reversal of 771134369 is 963431177.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 672727969 + 98406400 = 25937^2 + 9920^2 .

It is an emirp because it is prime and its reverse (963431177) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-771134369 is a prime.

It is a super-2 number, since 2×771134369² = 1189296430106056322, which contains 22 as substring.

It is equal to p_39736490 and since 771134369 and 39736490 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 (771134339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 385567184 + 385567185.

It is an arithmetic number, because the mean of its divisors is an integer number (385567185).

Almost surely, 2^771134369 is an apocalyptic number.

It is an amenable number.

771134369 is a deficient number, since it is larger than the sum of its proper divisors (1).

771134369 is an equidigital number, since it uses as much as digits as its factorization.

771134369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 95256, while the sum is 41.

The square root of 771134369 is about 27769.3062390835. The cubic root of 771134369 is about 917.0155214054.

The spelling of 771134369 in words is "seven hundred seventy-one million, one hundred thirty-four thousand, three hundred sixty-nine".