1139859550 has 12 divisors (see below), whose sum is σ = 2120138856. Its totient is φ = 455943800.

The previous prime is 1139859547. The next prime is 1139859559. The reversal of 1139859550 is 559589311.

It is a self number, because there is not a number n which added to its sum of digits gives 1139859550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1139859559) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11398546 + ... + 11398645.

It is an arithmetic number, because the mean of its divisors is an integer number (176678238).

Almost surely, 2^1139859550 is an apocalyptic number.

1139859550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1139859550 is a deficient number, since it is larger than the sum of its proper divisors (980279306).

1139859550 is a wasteful number, since it uses less digits than its factorization.

1139859550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22797203 (or 22797198 counting only the distinct ones).

The product of its (nonzero) digits is 243000, while the sum is 46.

The square root of 1139859550 is about 33761.8060832059. The cubic root of 1139859550 is about 1044.6010244056.

The spelling of 1139859550 in words is "one billion, one hundred thirty-nine million, eight hundred fifty-nine thousand, five hundred fifty".