3131242 has 8 divisors (see below), whose sum is σ = 4763232. Its totient is φ = 1543500.

The previous prime is 3131239. The next prime is 3131251. The reversal of 3131242 is 2421313.

It is a happy number.

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

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, 10884 + ... + 11167.

It is an arithmetic number, because the mean of its divisors is an integer number (595404).

Almost surely, 2^3131242 is an apocalyptic number.

3131242 is a deficient number, since it is larger than the sum of its proper divisors (1631990).

3131242 is a wasteful number, since it uses less digits than its factorization.

3131242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22124.

The product of its digits is 144, while the sum is 16.

The square root of 3131242 is about 1769.5315764348. The cubic root of 3131242 is about 146.2981646704.

Adding to 3131242 its reverse (2421313), we get a palindrome (5552555).

The spelling of 3131242 in words is "three million, one hundred thirty-one thousand, two hundred forty-two".