3143514721 has 4 divisors (see below), whose sum is σ = 3149158932. Its totient is φ = 3137870512.

The previous prime is 3143514707. The next prime is 3143514763. The reversal of 3143514721 is 1274153413.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 515517025 + 2627997696 = 22705^2 + 51264^2 .

It is a cyclic number.

It is not a de Polignac number, because 3143514721 - 2²¹ = 3141417569 is a prime.

It is a super-2 number, since 2×3143514721² = 19763369602287415682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3143514791) 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, 2821270 + ... + 2822383.

It is an arithmetic number, because the mean of its divisors is an integer number (787289733).

Almost surely, 2^3143514721 is an apocalyptic number.

It is an amenable number.

3143514721 is a deficient number, since it is larger than the sum of its proper divisors (5644211).

3143514721 is an equidigital number, since it uses as much as digits as its factorization.

3143514721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5644210.

The product of its digits is 10080, while the sum is 31.

The square root of 3143514721 is about 56067.0555763364. The cubic root of 3143514721 is about 1464.8905121498.

The spelling of 3143514721 in words is "three billion, one hundred forty-three million, five hundred fourteen thousand, seven hundred twenty-one".