1391117060 has 12 divisors (see below), whose sum is σ = 2921345868. Its totient is φ = 556446816.

The previous prime is 1391117059. The next prime is 1391117087. The reversal of 1391117060 is 607111931.

It can be written as a sum of positive squares in 2 ways, for example, as 1065891904 + 325225156 = 32648^2 + 18034^2 .

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 3 ways as a sum of consecutive naturals, for example, 34777907 + ... + 34777946.

It is an arithmetic number, because the mean of its divisors is an integer number (243445489).

Almost surely, 2^1391117060 is an apocalyptic number.

1391117060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1391117060 is an abundant number, since it is smaller than the sum of its proper divisors (1530228808).

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

1391117060 is a wasteful number, since it uses less digits than its factorization.

1391117060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69555862 (or 69555860 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 29.

The square root of 1391117060 is about 37297.6816973924. The cubic root of 1391117060 is about 1116.3179091562.

Adding to 1391117060 its reverse (607111931), we get a palindrome (1998228991).

The spelling of 1391117060 in words is "one billion, three hundred ninety-one million, one hundred seventeen thousand, sixty".