1151231632 has 20 divisors (see below), whose sum is σ = 2248078336. Its totient is φ = 571082400.

The previous prime is 1151231629. The next prime is 1151231639. The reversal of 1151231632 is 2361321511.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1151231597 and 1151231606.

It is not an unprimeable number, because it can be changed into a prime (1151231639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281244 + ... + 285307.

Almost surely, 2^1151231632 is an apocalyptic number.

It is an amenable number.

1151231632 is a deficient number, since it is larger than the sum of its proper divisors (1096846704).

1151231632 is a wasteful number, since it uses less digits than its factorization.

1151231632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566686 (or 566680 counting only the distinct ones).

The product of its digits is 1080, while the sum is 25.

The square root of 1151231632 is about 33929.8044792480. The cubic root of 1151231632 is about 1048.0634394322.

The spelling of 1151231632 in words is "one billion, one hundred fifty-one million, two hundred thirty-one thousand, six hundred thirty-two".