1139475773 has 4 divisors (see below), whose sum is σ = 1176233088. Its totient is φ = 1102718460.

The previous prime is 1139475763. The next prime is 1139475793. The reversal of 1139475773 is 3775749311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3775749311 = 191 ⋅19768321.

It is a cyclic number.

It is not a de Polignac number, because 1139475773 - 2²⁴ = 1122698557 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1139475763) 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, 18378611 + ... + 18378672.

It is an arithmetic number, because the mean of its divisors is an integer number (294058272).

Almost surely, 2^1139475773 is an apocalyptic number.

It is an amenable number.

1139475773 is a deficient number, since it is larger than the sum of its proper divisors (36757315).

1139475773 is an equidigital number, since it uses as much as digits as its factorization.

1139475773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36757314.

The product of its digits is 555660, while the sum is 47.

The square root of 1139475773 is about 33756.1220077188. The cubic root of 1139475773 is about 1044.4837763792.

The spelling of 1139475773 in words is "one billion, one hundred thirty-nine million, four hundred seventy-five thousand, seven hundred seventy-three".