3151242 has 12 divisors (see below), whose sum is σ = 6827730. Its totient is φ = 1050408.

The previous prime is 3151241. The next prime is 3151259. The reversal of 3151242 is 2421513.

It can be written as a sum of positive squares in only one way, i.e., 2556801 + 594441 = 1599^2 + 771^2 .

It is a super-2 number, since 2×3151242² = 19860652285128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 175069 = 3151242 / (3 + 1 + 5 + 1 + 2 + 4 + 2).

It is not an unprimeable number, because it can be changed into a prime (3151241) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 87517 + ... + 87552.

Almost surely, 2^3151242 is an apocalyptic number.

3151242 is an abundant number, since it is smaller than the sum of its proper divisors (3676488).

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

3151242 is a wasteful number, since it uses less digits than its factorization.

3151242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175077 (or 175074 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 3151242 is about 1775.1737943086. The cubic root of 3151242 is about 146.6089844339.

Adding to 3151242 its reverse (2421513), we get a palindrome (5572755).

The spelling of 3151242 in words is "three million, one hundred fifty-one thousand, two hundred forty-two".