1140061439 has 4 divisors (see below), whose sum is σ = 1243703400. Its totient is φ = 1036419480.

The previous prime is 1140061397. The next prime is 1140061441. The reversal of 1140061439 is 9341600411.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1140061439 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 (1140001439) 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, 51820964 + ... + 51820985.

It is an arithmetic number, because the mean of its divisors is an integer number (310925850).

Almost surely, 2^1140061439 is an apocalyptic number.

1140061439 is a deficient number, since it is larger than the sum of its proper divisors (103641961).

1140061439 is a wasteful number, since it uses less digits than its factorization.

1140061439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103641960.

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

The square root of 1140061439 is about 33764.7958530775. The cubic root of 1140061439 is about 1044.6626931163.

The spelling of 1140061439 in words is "one billion, one hundred forty million, sixty-one thousand, four hundred thirty-nine".