1156212313138 has 8 divisors (see below), whose sum is σ = 1734851623788. Its totient is φ = 577928438544.

The previous prime is 1156212313127. The next prime is 1156212313159. The reversal of 1156212313138 is 8313132126511.

It can be written as a sum of positive squares in 2 ways, for example, as 699091637689 + 457120675449 = 836117^2 + 676107^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1156212313097 and 1156212313106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88850881 + ... + 88863892.

Almost surely, 2^{1156212313138} is an apocalyptic number.

1156212313138 is a deficient number, since it is larger than the sum of its proper divisors (578639310650).

1156212313138 is a wasteful number, since it uses less digits than its factorization.

1156212313138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177718028.

The product of its digits is 25920, while the sum is 37.

Adding to 1156212313138 its reverse (8313132126511), we get a palindrome (9469344439649).

The spelling of 1156212313138 in words is "one trillion, one hundred fifty-six billion, two hundred twelve million, three hundred thirteen thousand, one hundred thirty-eight".