3121142452 has 6 divisors (see below), whose sum is σ = 5461999298. Its totient is φ = 1560571224.

The previous prime is 3121142449. The next prime is 3121142459. The reversal of 3121142452 is 2542411213.

It can be written as a sum of positive squares in only one way, i.e., 3121009956 + 132496 = 55866^2 + 364^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121142459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 390142803 + ... + 390142810.

Almost surely, 2^3121142452 is an apocalyptic number.

It is an amenable number.

3121142452 is a deficient number, since it is larger than the sum of its proper divisors (2340856846).

3121142452 is a wasteful number, since it uses less digits than its factorization.

3121142452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780285617 (or 780285615 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 3121142452 is about 55867.1858249545. The cubic root of 3121142452 is about 1461.4070460037.

Adding to 3121142452 its reverse (2542411213), we get a palindrome (5663553665).

The spelling of 3121142452 in words is "three billion, one hundred twenty-one million, one hundred forty-two thousand, four hundred fifty-two".