1139694172 has 12 divisors (see below), whose sum is σ = 2006408880. Its totient is φ = 566434496.

The previous prime is 1139694109. The next prime is 1139694173. The reversal of 1139694172 is 2714969311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1139694173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 852397 + ... + 853732.

It is an arithmetic number, because the mean of its divisors is an integer number (167200740).

Almost surely, 2^1139694172 is an apocalyptic number.

It is an amenable number.

1139694172 is a deficient number, since it is larger than the sum of its proper divisors (866714708).

1139694172 is a wasteful number, since it uses less digits than its factorization.

1139694172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1706300 (or 1706298 counting only the distinct ones).

The product of its digits is 81648, while the sum is 43.

The square root of 1139694172 is about 33759.3568066692. The cubic root of 1139694172 is about 1044.5505028644.

The spelling of 1139694172 in words is "one billion, one hundred thirty-nine million, six hundred ninety-four thousand, one hundred seventy-two".