1139083945 has 8 divisors (see below), whose sum is σ = 1369306440. Its totient is φ = 909663360.

The previous prime is 1139083943. The next prime is 1139083969. The reversal of 1139083945 is 5493809311.

It can be written as a sum of positive squares in 4 ways, for example, as 204375616 + 934708329 = 14296^2 + 30573^2 .

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

It is not a de Polignac number, because 1139083945 - 2¹ = 1139083943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1139083943) 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, 197346 + ... + 203035.

It is an arithmetic number, because the mean of its divisors is an integer number (171163305).

Almost surely, 2^1139083945 is an apocalyptic number.

It is an amenable number.

1139083945 is a deficient number, since it is larger than the sum of its proper divisors (230222495).

1139083945 is an equidigital number, since it uses as much as digits as its factorization.

1139083945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400955.

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 1139083945 is about 33750.3177022084. The cubic root of 1139083945 is about 1044.3640415216.

The spelling of 1139083945 in words is "one billion, one hundred thirty-nine million, eighty-three thousand, nine hundred forty-five".