1139655080 has 32 divisors (see below), whose sum is σ = 2600346240. Its totient is φ = 449440320.

The previous prime is 1139655071. The next prime is 1139655091. The reversal of 1139655080 is 805569311.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197804 + ... + 203483.

It is an arithmetic number, because the mean of its divisors is an integer number (81260820).

Almost surely, 2^1139655080 is an apocalyptic number.

1139655080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1139655080 is an abundant number, since it is smaller than the sum of its proper divisors (1460691160).

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

1139655080 is a wasteful number, since it uses less digits than its factorization.

1139655080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401369 (or 401365 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 38.

The square root of 1139655080 is about 33758.7778214793. Note that the first 3 decimals coincide. The cubic root of 1139655080 is about 1044.5385598841.

The spelling of 1139655080 in words is "one billion, one hundred thirty-nine million, six hundred fifty-five thousand, eighty".