1171481630 has 32 divisors (see below), whose sum is σ = 2374576128. Its totient is φ = 412250400.

The previous prime is 1171481621. The next prime is 1171481653. The reversal of 1171481630 is 361841711.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168362 + ... + 175181.

It is an arithmetic number, because the mean of its divisors is an integer number (74205504).

Almost surely, 2^1171481630 is an apocalyptic number.

1171481630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1171481630 is an abundant number, since it is smaller than the sum of its proper divisors (1203094498).

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

1171481630 is a wasteful number, since it uses less digits than its factorization.

1171481630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343592.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 1171481630 is about 34226.9138252341. The cubic root of 1171481630 is about 1054.1728518092.

The spelling of 1171481630 in words is "one billion, one hundred seventy-one million, four hundred eighty-one thousand, six hundred thirty".