1121539232 has 48 divisors (see below), whose sum is σ = 2550465792. Its totient is φ = 479800320.

The previous prime is 1121539231. The next prime is 1121539273. The reversal of 1121539232 is 2329351211.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1121539195 and 1121539204.

It is not an unprimeable number, because it can be changed into a prime (1121539231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87728 + ... + 99695.

It is an arithmetic number, because the mean of its divisors is an integer number (53134704).

Almost surely, 2^1121539232 is an apocalyptic number.

It is an amenable number.

1121539232 is an abundant number, since it is smaller than the sum of its proper divisors (1428926560).

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

1121539232 is a wasteful number, since it uses less digits than its factorization.

1121539232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187461 (or 187453 counting only the distinct ones).

The product of its digits is 3240, while the sum is 29.

The square root of 1121539232 is about 33489.3898421575. The cubic root of 1121539232 is about 1038.9743438520.

The spelling of 1121539232 in words is "one billion, one hundred twenty-one million, five hundred thirty-nine thousand, two hundred thirty-two".