1113425549 has 2 divisors, whose sum is σ = 1113425550. Its totient is φ = 1113425548.

The previous prime is 1113425539. The next prime is 1113425567. The reversal of 1113425549 is 9455243111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 929823049 + 183602500 = 30493^2 + 13550^2 .

It is an emirp because it is prime and its reverse (9455243111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1113425549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1113425539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556712774 + 556712775.

It is an arithmetic number, because the mean of its divisors is an integer number (556712775).

Almost surely, 2^1113425549 is an apocalyptic number.

It is an amenable number.

1113425549 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113425549 is an equidigital number, since it uses as much as digits as its factorization.

1113425549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21600, while the sum is 35.

The square root of 1113425549 is about 33368.0318418692. The cubic root of 1113425549 is about 1036.4628195643.

The spelling of 1113425549 in words is "one billion, one hundred thirteen million, four hundred twenty-five thousand, five hundred forty-nine".