3131606 has 16 divisors (see below), whose sum is σ = 4883760. Its totient is φ = 1504800.

The previous prime is 3131603. The next prime is 3131629. The reversal of 3131606 is 6061313.

It is a super-2 number, since 2×3131606² = 19613912278472, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131603) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7265 + ... + 7683.

It is an arithmetic number, because the mean of its divisors is an integer number (305235).

Almost surely, 2^3131606 is an apocalyptic number.

3131606 is a deficient number, since it is larger than the sum of its proper divisors (1752154).

3131606 is a wasteful number, since it uses less digits than its factorization.

3131606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 3131606 is about 1769.6344255241. The cubic root of 3131606 is about 146.3038333974.

Adding to 3131606 its reverse (6061313), we get a palindrome (9192919).

The spelling of 3131606 in words is "three million, one hundred thirty-one thousand, six hundred six".