1131529642 has 8 divisors (see below), whose sum is σ = 1697540832. Its totient is φ = 565682700.

The previous prime is 1131529577. The next prime is 1131529657. The reversal of 1131529642 is 2469251311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1131529598 and 1131529607.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22084 + ... + 52447.

It is an arithmetic number, because the mean of its divisors is an integer number (212192604).

Almost surely, 2^1131529642 is an apocalyptic number.

1131529642 is a deficient number, since it is larger than the sum of its proper divisors (566011190).

1131529642 is an equidigital number, since it uses as much as digits as its factorization.

1131529642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82124.

The product of its digits is 12960, while the sum is 34.

The square root of 1131529642 is about 33638.2169860413. The cubic root of 1131529642 is about 1042.0502092288.

The spelling of 1131529642 in words is "one billion, one hundred thirty-one million, five hundred twenty-nine thousand, six hundred forty-two".