64748143 has 8 divisors (see below), whose sum is σ = 69819120. Its totient is φ = 59843520.

The previous prime is 64748141. The next prime is 64748249. The reversal of 64748143 is 34184746.

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 64748143 - 2¹ = 64748141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64748141) 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, 40780 + ... + 42337.

It is an arithmetic number, because the mean of its divisors is an integer number (8727390).

Almost surely, 2^64748143 is an apocalyptic number.

64748143 is a deficient number, since it is larger than the sum of its proper divisors (5070977).

64748143 is a wasteful number, since it uses less digits than its factorization.

64748143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83177.

The product of its digits is 64512, while the sum is 37.

The square root of 64748143 is about 8046.6230805227. The cubic root of 64748143 is about 401.5525970588.

The spelling of 64748143 in words is "sixty-four million, seven hundred forty-eight thousand, one hundred forty-three".