1139275368 has 448 divisors, whose sum is σ = 4155148800. Its totient is φ = 284135040.

The previous prime is 1139275363. The next prime is 1139275373. The reversal of 1139275368 is 8635729311.

1139275368 is a `hidden beast` number, since 1 + 13 + 9 + 275 + 368 = 666.

It is an interprime number because it is at equal distance from previous prime (1139275363) and next prime (1139275373).

Its product of digits (272160) is a multiple of the sum of its prime factors (144).

It is not an unprimeable number, because it can be changed into a prime (1139275363) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 19309723 + ... + 19309781.

Almost surely, 2^1139275368 is an apocalyptic number.

1139275368 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1139275368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2077574400).

1139275368 is an abundant number, since it is smaller than the sum of its proper divisors (3015873432).

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

1139275368 is a wasteful number, since it uses less digits than its factorization.

1139275368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144 (or 125 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 1139275368 is about 33753.1534526776. The cubic root of 1139275368 is about 1044.4225400198.

The spelling of 1139275368 in words is "one billion, one hundred thirty-nine million, two hundred seventy-five thousand, three hundred sixty-eight".