6143172457 has 4 divisors (see below), whose sum is σ = 6355006020. Its totient is φ = 5931338896.

The previous prime is 6143172407. The next prime is 6143172467. The reversal of 6143172457 is 7542713416.

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 1969495641 + 4173676816 = 44379^2 + 64604^2 .

It is a cyclic number.

It is not a de Polignac number, because 6143172457 - 2¹¹ = 6143170409 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6143172407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105916738 + ... + 105916795.

It is an arithmetic number, because the mean of its divisors is an integer number (1588751505).

Almost surely, 2^6143172457 is an apocalyptic number.

It is an amenable number.

6143172457 is a deficient number, since it is larger than the sum of its proper divisors (211833563).

6143172457 is a wasteful number, since it uses less digits than its factorization.

6143172457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211833562.

The product of its digits is 141120, while the sum is 40.

The square root of 6143172457 is about 78378.3927941879. The cubic root of 6143172457 is about 1831.4605534679.

The spelling of 6143172457 in words is "six billion, one hundred forty-three million, one hundred seventy-two thousand, four hundred fifty-seven".