64192143 has 8 divisors (see below), whose sum is σ = 85632256. Its totient is φ = 42773400.

The previous prime is 64192133. The next prime is 64192147. The reversal of 64192143 is 34129146.

It is a Cunningham number, because it is equal to 8012²-1.

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

It is not a de Polignac number, because 64192143 - 2¹⁴ = 64175759 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64192143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64192147) 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, 4008 + ... + 12018.

It is an arithmetic number, because the mean of its divisors is an integer number (10704032).

Almost surely, 2^64192143 is an apocalyptic number.

64192143 is a deficient number, since it is larger than the sum of its proper divisors (21440113).

64192143 is a wasteful number, since it uses less digits than its factorization.

64192143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10685.

The product of its digits is 5184, while the sum is 30.

The square root of 64192143 is about 8011.9999375936. Note that the first 4 decimals coincide. The cubic root of 64192143 is about 400.3998979874.

The spelling of 64192143 in words is "sixty-four million, one hundred ninety-two thousand, one hundred forty-three".