1117431405 has 24 divisors (see below), whose sum is σ = 1937688480. Its totient is φ = 595715040.

The previous prime is 1117431391. The next prime is 1117431421. The reversal of 1117431405 is 5041347111.

It is not a de Polignac number, because 1117431405 - 2¹⁵ = 1117398637 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 166770 + ... + 173340.

It is an arithmetic number, because the mean of its divisors is an integer number (80737020).

Almost surely, 2^1117431405 is an apocalyptic number.

1117431405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1117431405 is a deficient number, since it is larger than the sum of its proper divisors (820257075).

1117431405 is a wasteful number, since it uses less digits than its factorization.

1117431405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10361 (or 10358 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 1117431405 is about 33428.0033056119. The cubic root of 1117431405 is about 1037.7043189800.

Adding to 1117431405 its reverse (5041347111), we get a palindrome (6158778516).

The spelling of 1117431405 in words is "one billion, one hundred seventeen million, four hundred thirty-one thousand, four hundred five".