1113545617 has 2 divisors, whose sum is σ = 1113545618. Its totient is φ = 1113545616.

The previous prime is 1113545603. The next prime is 1113545639. The reversal of 1113545617 is 7165453111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 793886976 + 319658641 = 28176^2 + 17879^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1113545617 is a prime.

It is a super-2 number, since 2×1113545617² = 2479967682279821378, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1113543617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556772808 + 556772809.

It is an arithmetic number, because the mean of its divisors is an integer number (556772809).

Almost surely, 2^1113545617 is an apocalyptic number.

It is an amenable number.

1113545617 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113545617 is an equidigital number, since it uses as much as digits as its factorization.

1113545617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12600, while the sum is 34.

The square root of 1113545617 is about 33369.8309405367. The cubic root of 1113545617 is about 1036.5000744261.

Adding to 1113545617 its reverse (7165453111), we get a palindrome (8278998728).

The spelling of 1113545617 in words is "one billion, one hundred thirteen million, five hundred forty-five thousand, six hundred seventeen".