1113661439 has 8 divisors (see below), whose sum is σ = 1218291840. Its totient is φ = 1009595800.

The previous prime is 1113661433. The next prime is 1113661489. The reversal of 1113661439 is 9341663111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1113661439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1113661399 and 1113661408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113661433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137057 + ... + 144954.

It is an arithmetic number, because the mean of its divisors is an integer number (152286480).

Almost surely, 2^1113661439 is an apocalyptic number.

1113661439 is a deficient number, since it is larger than the sum of its proper divisors (104630401).

1113661439 is a wasteful number, since it uses less digits than its factorization.

1113661439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282381.

The product of its digits is 11664, while the sum is 35.

The square root of 1113661439 is about 33371.5663252416. The cubic root of 1113661439 is about 1036.5360092957.

The spelling of 1113661439 in words is "one billion, one hundred thirteen million, six hundred sixty-one thousand, four hundred thirty-nine".