1113481613 has 2 divisors, whose sum is σ = 1113481614. Its totient is φ = 1113481612.

The previous prime is 1113481609. The next prime is 1113481631. The reversal of 1113481613 is 3161843111.

It is a happy number.

Together with next prime (1113481631) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1004446249 + 109035364 = 31693^2 + 10442^2 .

It is a cyclic number.

It is not a de Polignac number, because 1113481613 - 2² = 1113481609 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1113481513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556740806 + 556740807.

It is an arithmetic number, because the mean of its divisors is an integer number (556740807).

Almost surely, 2^1113481613 is an apocalyptic number.

It is an amenable number.

1113481613 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113481613 is an equidigital number, since it uses as much as digits as its factorization.

1113481613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 29.

The square root of 1113481613 is about 33368.8719168029. The cubic root of 1113481613 is about 1036.4802155115.

The spelling of 1113481613 in words is "one billion, one hundred thirteen million, four hundred eighty-one thousand, six hundred thirteen".