3128245143 has 4 divisors (see below), whose sum is σ = 4170993528. Its totient is φ = 2085496760.

The previous prime is 3128245117. The next prime is 3128245151. The reversal of 3128245143 is 3415428213.

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

It is a cyclic number.

It is not a de Polignac number, because 3128245143 - 2⁸ = 3128244887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3128245163) 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, 521374188 + ... + 521374193.

It is an arithmetic number, because the mean of its divisors is an integer number (1042748382).

Almost surely, 2^3128245143 is an apocalyptic number.

3128245143 is a deficient number, since it is larger than the sum of its proper divisors (1042748385).

3128245143 is a wasteful number, since it uses less digits than its factorization.

3128245143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042748384.

The product of its digits is 23040, while the sum is 33.

The square root of 3128245143 is about 55930.7173474469. The cubic root of 3128245143 is about 1462.5147663349.

The spelling of 3128245143 in words is "three billion, one hundred twenty-eight million, two hundred forty-five thousand, one hundred forty-three".