1139551804 has 12 divisors (see below), whose sum is σ = 2003002344. Its totient is φ = 567265424.

The previous prime is 1139551799. The next prime is 1139551849. The reversal of 1139551804 is 4081559311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 626599 + ... + 628414.

It is an arithmetic number, because the mean of its divisors is an integer number (166916862).

Almost surely, 2^1139551804 is an apocalyptic number.

It is an amenable number.

1139551804 is a deficient number, since it is larger than the sum of its proper divisors (863450540).

1139551804 is a wasteful number, since it uses less digits than its factorization.

1139551804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255244 (or 1255242 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 37.

The square root of 1139551804 is about 33757.2481698375. The cubic root of 1139551804 is about 1044.5070067633.

The spelling of 1139551804 in words is "one billion, one hundred thirty-nine million, five hundred fifty-one thousand, eight hundred four".