1121143439 has 8 divisors (see below), whose sum is σ = 1208024832. Its totient is φ = 1034353440.

The previous prime is 1121143433. The next prime is 1121143447. The reversal of 1121143439 is 9343411211.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1121143439 - 2¹² = 1121139343 is a prime.

It is a super-2 number, since 2×1121143439² = 2513925221625493442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121143433) 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, 3794 + ... + 47504.

It is an arithmetic number, because the mean of its divisors is an integer number (151003104).

Almost surely, 2^1121143439 is an apocalyptic number.

1121143439 is a deficient number, since it is larger than the sum of its proper divisors (86881393).

1121143439 is a wasteful number, since it uses less digits than its factorization.

1121143439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45697.

The product of its digits is 2592, while the sum is 29.

The square root of 1121143439 is about 33483.4800909344. The cubic root of 1121143439 is about 1038.8521108994.

The spelling of 1121143439 in words is "one billion, one hundred twenty-one million, one hundred forty-three thousand, four hundred thirty-nine".