1113457889 has 4 divisors (see below), whose sum is σ = 1113633024. Its totient is φ = 1113282756.

The previous prime is 1113457883. The next prime is 1113457901. The reversal of 1113457889 is 9887543111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9887543111 = 17 ⋅581620183.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1113457889 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1113457883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77657 + ... + 90870.

It is an arithmetic number, because the mean of its divisors is an integer number (278408256).

Almost surely, 2^1113457889 is an apocalyptic number.

It is an amenable number.

1113457889 is a deficient number, since it is larger than the sum of its proper divisors (175135).

1113457889 is an equidigital number, since it uses as much as digits as its factorization.

1113457889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175134.

The product of its digits is 241920, while the sum is 47.

The square root of 1113457889 is about 33368.5164339082. The cubic root of 1113457889 is about 1036.4728543269.

The spelling of 1113457889 in words is "one billion, one hundred thirteen million, four hundred fifty-seven thousand, eight hundred eighty-nine".