1147039769 has 2 divisors, whose sum is σ = 1147039770. Its totient is φ = 1147039768.

The previous prime is 1147039763. The next prime is 1147039771. The reversal of 1147039769 is 9679307411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 870250000 + 276789769 = 29500^2 + 16637^2 .

It is a cyclic number.

It is not a de Polignac number, because 1147039769 - 2⁸ = 1147039513 is a prime.

It is a super-2 number, since 2×1147039769² = 2631400463335146722, which contains 22 as substring.

Together with 1147039771, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1147039763) 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, 573519884 + 573519885.

It is an arithmetic number, because the mean of its divisors is an integer number (573519885).

Almost surely, 2^1147039769 is an apocalyptic number.

It is an amenable number.

1147039769 is a deficient number, since it is larger than the sum of its proper divisors (1).

1147039769 is an equidigital number, since it uses as much as digits as its factorization.

1147039769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 285768, while the sum is 47.

The square root of 1147039769 is about 33867.9755668980. The cubic root of 1147039769 is about 1046.7898233086.

The spelling of 1147039769 in words is "one billion, one hundred forty-seven million, thirty-nine thousand, seven hundred sixty-nine".