1139149008 has 120 divisors (see below), whose sum is σ = 3356222688. Its totient is φ = 373963392.

The previous prime is 1139148977. The next prime is 1139149031. The reversal of 1139149008 is 8009419311.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 258310 + ... + 262682.

Almost surely, 2^1139149008 is an apocalyptic number.

1139149008 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 1139149008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1678111344).

1139149008 is an abundant number, since it is smaller than the sum of its proper divisors (2217073680).

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

1139149008 is an equidigital number, since it uses as much as digits as its factorization.

1139149008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4463 (or 4445 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 1139149008 is about 33751.2815756676. The cubic root of 1139149008 is about 1044.3839253836.

The spelling of 1139149008 in words is "one billion, one hundred thirty-nine million, one hundred forty-nine thousand, eight".