1180129986 has 56 divisors (see below), whose sum is σ = 3033258624. Its totient is φ = 337177080.

The previous prime is 1180129967. The next prime is 1180129991. The reversal of 1180129986 is 6899210811.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 47610 + ... + 68021.

Almost surely, 2^1180129986 is an apocalyptic number.

1180129986 is an abundant number, since it is smaller than the sum of its proper divisors (1853128638).

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

1180129986 is an equidigital number, since it uses as much as digits as its factorization.

1180129986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115658 (or 115643 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 45.

The square root of 1180129986 is about 34353.0200419119. The cubic root of 1180129986 is about 1056.7606058229.

The spelling of 1180129986 in words is "one billion, one hundred eighty million, one hundred twenty-nine thousand, nine hundred eighty-six".