1139847552 has 320 divisors, whose sum is σ = 3732220800. Its totient is φ = 343719936.

The previous prime is 1139847551. The next prime is 1139847559. The reversal of 1139847552 is 2557489311.

1139847552 is a `hidden beast` number, since 1 + 1 + 3 + 98 + 4 + 7 + 552 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1139847498 and 1139847507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1139847551) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5111313 + ... + 5111535.

It is an arithmetic number, because the mean of its divisors is an integer number (11663190).

Almost surely, 2^1139847552 is an apocalyptic number.

1139847552 is a gapful number since it is divisible by the number (12) 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 1139847552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1866110400).

1139847552 is an abundant number, since it is smaller than the sum of its proper divisors (2592373248).

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

1139847552 is a wasteful number, since it uses less digits than its factorization.

1139847552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295 (or 274 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 1139847552 is about 33761.6283967465. The cubic root of 1139847552 is about 1044.5973592853.

The spelling of 1139847552 in words is "one billion, one hundred thirty-nine million, eight hundred forty-seven thousand, five hundred fifty-two".