1140657079 has 4 divisors (see below), whose sum is σ = 1140816880. Its totient is φ = 1140497280.

The previous prime is 1140657073. The next prime is 1140657083. The reversal of 1140657079 is 9707560411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9707560411 = 3329 ⋅2916059.

It is a cyclic number.

It is not a de Polignac number, because 1140657079 - 2³ = 1140657071 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 (1140657071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68667 + ... + 83644.

It is an arithmetic number, because the mean of its divisors is an integer number (285204220).

Almost surely, 2^1140657079 is an apocalyptic number.

1140657079 is a deficient number, since it is larger than the sum of its proper divisors (159801).

1140657079 is an equidigital number, since it uses as much as digits as its factorization.

1140657079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159800.

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 1140657079 is about 33773.6151307496. The cubic root of 1140657079 is about 1044.8445940005.

The spelling of 1140657079 in words is "one billion, one hundred forty million, six hundred fifty-seven thousand, seventy-nine".