1117661475 has 48 divisors (see below), whose sum is σ = 2131331840. Its totient is φ = 506217600.

The previous prime is 1117661443. The next prime is 1117661539. The reversal of 1117661475 is 5741667111.

It is not a de Polignac number, because 1117661475 - 2⁵ = 1117661443 is a prime.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 47460 + ... + 66990.

Almost surely, 2^1117661475 is an apocalyptic number.

1117661475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1117661475 is a deficient number, since it is larger than the sum of its proper divisors (1013670365).

1117661475 is a wasteful number, since it uses less digits than its factorization.

1117661475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19660 (or 19655 counting only the distinct ones).

The product of its digits is 35280, while the sum is 39.

The square root of 1117661475 is about 33431.4444049311. Note that the first 4 decimals coincide. The cubic root of 1117661475 is about 1037.7755323742.

The spelling of 1117661475 in words is "one billion, one hundred seventeen million, six hundred sixty-one thousand, four hundred seventy-five".