1150139232 has 144 divisors (see below), whose sum is σ = 3651455808. Its totient is φ = 340381440.

The previous prime is 1150139231. The next prime is 1150139251. The reversal of 1150139232 is 2329310511.

It is a tau number, because it is divible by the number of its divisors (144).

It is a junction number, because it is equal to n+sod(n) for n = 1150139196 and 1150139205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1150139231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 132003 + ... + 140445.

It is an arithmetic number, because the mean of its divisors is an integer number (25357332).

Almost surely, 2^1150139232 is an apocalyptic number.

1150139232 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 1150139232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1825727904).

1150139232 is an abundant number, since it is smaller than the sum of its proper divisors (2501316576).

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

1150139232 is a wasteful number, since it uses less digits than its factorization.

1150139232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8513 (or 8502 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 1150139232 is about 33913.7027173383. The cubic root of 1150139232 is about 1047.7318331790.

Adding to 1150139232 its reverse (2329310511), we get a palindrome (3479449743).

The spelling of 1150139232 in words is "one billion, one hundred fifty million, one hundred thirty-nine thousand, two hundred thirty-two".