3143947965 has 8 divisors (see below), whose sum is σ = 5030316768. Its totient is φ = 1676772240.

The previous prime is 3143947889. The next prime is 3143947973. The reversal of 3143947965 is 5697493413.

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

It is not a de Polignac number, because 3143947965 - 2¹⁶ = 3143882429 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104798251 + ... + 104798280.

It is an arithmetic number, because the mean of its divisors is an integer number (628789596).

Almost surely, 2^3143947965 is an apocalyptic number.

It is an amenable number.

3143947965 is a deficient number, since it is larger than the sum of its proper divisors (1886368803).

3143947965 is a wasteful number, since it uses less digits than its factorization.

3143947965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209596539.

The product of its digits is 2449440, while the sum is 51.

The square root of 3143947965 is about 56070.9190668389. The cubic root of 3143947965 is about 1464.9578068742.

The spelling of 3143947965 in words is "three billion, one hundred forty-three million, nine hundred forty-seven thousand, nine hundred sixty-five".