1139054208 has 64 divisors (see below), whose sum is σ = 3157185600. Its totient is φ = 363173888.

The previous prime is 1139054143. The next prime is 1139054209. The reversal of 1139054208 is 8024509311.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (1139054209) 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, 55653 + ... + 73316.

It is an arithmetic number, because the mean of its divisors is an integer number (49331025).

Almost surely, 2^1139054208 is an apocalyptic number.

It is an amenable number.

1139054208 is an abundant number, since it is smaller than the sum of its proper divisors (2018131392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1139054208 is a wasteful number, since it uses less digits than its factorization.

1139054208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129009 (or 128997 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 1139054208 is about 33749.8771553320. The cubic root of 1139054208 is about 1044.3549533638.

The spelling of 1139054208 in words is "one billion, one hundred thirty-nine million, fifty-four thousand, two hundred eight".