3181375036 has 48 divisors (see below), whose sum is σ = 6766937856. Its totient is φ = 1277547264.

The previous prime is 3181375009. The next prime is 3181375079. The reversal of 3181375036 is 6305731813.

It is a happy number.

It is a super-2 number, since 2×3181375036² = 20242294239368002592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3181374986 and 3181375004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93331 + ... + 122773.

It is an arithmetic number, because the mean of its divisors is an integer number (140977872).

Almost surely, 2^3181375036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3181375036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3383468928).

3181375036 is an abundant number, since it is smaller than the sum of its proper divisors (3585562820).

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

3181375036 is a wasteful number, since it uses less digits than its factorization.

3181375036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29698 (or 29696 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 3181375036 is about 56403.6792771535. The cubic root of 3181375036 is about 1470.7480783704.

The spelling of 3181375036 in words is "three billion, one hundred eighty-one million, three hundred seventy-five thousand, thirty-six".