3117845138 has 8 divisors (see below), whose sum is σ = 4677049020. Its totient is φ = 1558828800.

The previous prime is 3117845083. The next prime is 3117845177. The reversal of 3117845138 is 8315487113.

It is a happy number.

3117845138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3112858849 + 4986289 = 55793^2 + 2233^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3117845095 and 3117845104.

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, 7118 + ... + 79286.

Almost surely, 2^3117845138 is an apocalyptic number.

3117845138 is a deficient number, since it is larger than the sum of its proper divisors (1559203882).

3117845138 is a wasteful number, since it uses less digits than its factorization.

3117845138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93772.

The product of its digits is 80640, while the sum is 41.

The square root of 3117845138 is about 55837.6677342455. The cubic root of 3117845138 is about 1460.8922328238.

The spelling of 3117845138 in words is "three billion, one hundred seventeen million, eight hundred forty-five thousand, one hundred thirty-eight".