3143945109 has 8 divisors (see below), whose sum is σ = 4192816320. Its totient is φ = 2095518656.

The previous prime is 3143945059. The next prime is 3143945113. The reversal of 3143945109 is 9015493413.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 3143945109 - 2⁷ = 3143944981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3143945159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94329 + ... + 123230.

It is an arithmetic number, because the mean of its divisors is an integer number (524102040).

Almost surely, 2^3143945109 is an apocalyptic number.

It is an amenable number.

3143945109 is a deficient number, since it is larger than the sum of its proper divisors (1048871211).

3143945109 is a wasteful number, since it uses less digits than its factorization.

3143945109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222379.

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 3143945109 is about 56070.8935990858. The cubic root of 3143945109 is about 1464.9573632790.

The spelling of 3143945109 in words is "three billion, one hundred forty-three million, nine hundred forty-five thousand, one hundred nine".