3121453460 has 12 divisors (see below), whose sum is σ = 6555052308. Its totient is φ = 1248581376.

The previous prime is 3121453397. The next prime is 3121453481. The reversal of 3121453460 is 643541213.

It can be written as a sum of positive squares in 2 ways, for example, as 752295184 + 2369158276 = 27428^2 + 48674^2 .

It is a congruent number.

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, 78036317 + ... + 78036356.

It is an arithmetic number, because the mean of its divisors is an integer number (546254359).

Almost surely, 2^3121453460 is an apocalyptic number.

It is an amenable number.

3121453460 is an abundant number, since it is smaller than the sum of its proper divisors (3433598848).

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

3121453460 is a wasteful number, since it uses less digits than its factorization.

3121453460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156072682 (or 156072680 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 3121453460 is about 55869.9692142389. The cubic root of 3121453460 is about 1461.4555853013.

Adding to 3121453460 its reverse (643541213), we get a palindrome (3764994673).

The spelling of 3121453460 in words is "three billion, one hundred twenty-one million, four hundred fifty-three thousand, four hundred sixty".