3121442 has 8 divisors (see below), whose sum is σ = 4690332. Its totient is φ = 1558000.

The previous prime is 3121441. The next prime is 3121457. The reversal of 3121442 is 2441213.

It can be written as a sum of positive squares in 2 ways, for example, as 2725801 + 395641 = 1651^2 + 629^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 3121442.

It is not an unprimeable number, because it can be changed into a prime (3121441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 692 + ... + 2592.

Almost surely, 2^3121442 is an apocalyptic number.

3121442 is a deficient number, since it is larger than the sum of its proper divisors (1568890).

3121442 is a wasteful number, since it uses less digits than its factorization.

3121442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2724.

The product of its digits is 192, while the sum is 17.

The square root of 3121442 is about 1766.7603119835. The cubic root of 3121442 is about 146.1453796786.

Adding to 3121442 its reverse (2441213), we get a palindrome (5562655).

The spelling of 3121442 in words is "three million, one hundred twenty-one thousand, four hundred forty-two".