1171387417 has 2 divisors, whose sum is σ = 1171387418. Its totient is φ = 1171387416.

The previous prime is 1171387391. The next prime is 1171387433. The reversal of 1171387417 is 7147831711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1154708361 + 16679056 = 33981^2 + 4084^2 .

It is a cyclic number.

It is not a de Polignac number, because 1171387417 - 2⁷ = 1171387289 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1171387417.

It is not a weakly prime, because it can be changed into another prime (1171387817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 585693708 + 585693709.

It is an arithmetic number, because the mean of its divisors is an integer number (585693709).

Almost surely, 2^1171387417 is an apocalyptic number.

It is an amenable number.

1171387417 is a deficient number, since it is larger than the sum of its proper divisors (1).

1171387417 is an equidigital number, since it uses as much as digits as its factorization.

1171387417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32928, while the sum is 40.

The square root of 1171387417 is about 34225.5374976055. The cubic root of 1171387417 is about 1054.1445914573.

The spelling of 1171387417 in words is "one billion, one hundred seventy-one million, three hundred eighty-seven thousand, four hundred seventeen".