1117628931 has 16 divisors (see below), whose sum is σ = 1497200000. Its totient is φ = 741581568.

The previous prime is 1117628929. The next prime is 1117628951. The reversal of 1117628931 is 1398267111.

It is not a de Polignac number, because 1117628931 - 2¹ = 1117628929 is a prime.

It is a super-2 number, since 2×1117628931² = 2498188854816405522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1117628931.

It is not an unprimeable number, because it can be changed into a prime (1117628921) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 894195 + ... + 895443.

It is an arithmetic number, because the mean of its divisors is an integer number (93575000).

Almost surely, 2^1117628931 is an apocalyptic number.

1117628931 is a deficient number, since it is larger than the sum of its proper divisors (379571069).

1117628931 is a wasteful number, since it uses less digits than its factorization.

1117628931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2418.

The product of its digits is 18144, while the sum is 39.

The square root of 1117628931 is about 33430.9576739883. The cubic root of 1117628931 is about 1037.7654596478.

The spelling of 1117628931 in words is "one billion, one hundred seventeen million, six hundred twenty-eight thousand, nine hundred thirty-one".