1113446639 has 4 divisors (see below), whose sum is σ = 1114439256. Its totient is φ = 1112454024.

The previous prime is 1113446627. The next prime is 1113446647. The reversal of 1113446639 is 9366443111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1113446639 - 2¹² = 1113442543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113446689) 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, 494624 + ... + 496869.

It is an arithmetic number, because the mean of its divisors is an integer number (278609814).

Almost surely, 2^1113446639 is an apocalyptic number.

1113446639 is a deficient number, since it is larger than the sum of its proper divisors (992617).

1113446639 is an equidigital number, since it uses as much as digits as its factorization.

1113446639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992616.

The product of its digits is 46656, while the sum is 38.

The square root of 1113446639 is about 33368.3478614090. The cubic root of 1113446639 is about 1036.4693635920.

The spelling of 1113446639 in words is "one billion, one hundred thirteen million, four hundred forty-six thousand, six hundred thirty-nine".