3131355044 has 6 divisors (see below), whose sum is σ = 5479871334. Its totient is φ = 1565677520.

The previous prime is 3131355013. The next prime is 3131355047. The reversal of 3131355044 is 4405531313.

It can be written as a sum of positive squares in only one way, i.e., 3095809600 + 35545444 = 55640^2 + 5962^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3131354998 and 3131355016.

It is not an unprimeable number, because it can be changed into a prime (3131355047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 391419377 + ... + 391419384.

It is an arithmetic number, because the mean of its divisors is an integer number (913311889).

Almost surely, 2^3131355044 is an apocalyptic number.

It is an amenable number.

3131355044 is a deficient number, since it is larger than the sum of its proper divisors (2348516290).

3131355044 is a wasteful number, since it uses less digits than its factorization.

3131355044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782838765 (or 782838763 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 3131355044 is about 55958.5118100902. The cubic root of 3131355044 is about 1462.9992519978. Note that the first 3 decimals are identical.

Adding to 3131355044 its reverse (4405531313), we get a palindrome (7536886357).

The spelling of 3131355044 in words is "three billion, one hundred thirty-one million, three hundred fifty-five thousand, forty-four".