1117401643 has 2 divisors, whose sum is σ = 1117401644. Its totient is φ = 1117401642.

The previous prime is 1117401611. The next prime is 1117401671. The reversal of 1117401643 is 3461047111.

It is a happy number.

It is an a-pointer prime, because the next prime (1117401671) can be obtained adding 1117401643 to its sum of digits (28).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1117401643 - 2⁵ = 1117401611 is a prime.

It is not a weakly prime, because it can be changed into another prime (1117404643) 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, 558700821 + 558700822.

It is an arithmetic number, because the mean of its divisors is an integer number (558700822).

Almost surely, 2^1117401643 is an apocalyptic number.

1117401643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1117401643 is an equidigital number, since it uses as much as digits as its factorization.

1117401643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 1117401643 is about 33427.5581369624. The cubic root of 1117401643 is about 1037.6951060565.

Adding to 1117401643 its reverse (3461047111), we get a palindrome (4578448754).

The spelling of 1117401643 in words is "one billion, one hundred seventeen million, four hundred one thousand, six hundred forty-three".