1145885417 has 2 divisors, whose sum is σ = 1145885418. Its totient is φ = 1145885416.

The previous prime is 1145885407. The next prime is 1145885423. The reversal of 1145885417 is 7145885411.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 808208041 + 337677376 = 28429^2 + 18376^2 .

It is a cyclic number.

It is not a de Polignac number, because 1145885417 - 2²⁰ = 1144836841 is a prime.

It is not a weakly prime, because it can be changed into another prime (1145885407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572942708 + 572942709.

It is an arithmetic number, because the mean of its divisors is an integer number (572942709).

Almost surely, 2^1145885417 is an apocalyptic number.

It is an amenable number.

1145885417 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145885417 is an equidigital number, since it uses as much as digits as its factorization.

1145885417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 179200, while the sum is 44.

The square root of 1145885417 is about 33850.9293373166. The cubic root of 1145885417 is about 1046.4385511205.

The spelling of 1145885417 in words is "one billion, one hundred forty-five million, eight hundred eighty-five thousand, four hundred seventeen".