42648143 has 2 divisors, whose sum is σ = 42648144. Its totient is φ = 42648142.

The previous prime is 42648127. The next prime is 42648169. The reversal of 42648143 is 34184624.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42648143 - 2⁴ = 42648127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42648043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21324071 + 21324072.

It is an arithmetic number, because the mean of its divisors is an integer number (21324072).

Almost surely, 2^42648143 is an apocalyptic number.

42648143 is a deficient number, since it is larger than the sum of its proper divisors (1).

42648143 is an equidigital number, since it uses as much as digits as its factorization.

42648143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18432, while the sum is 32.

The square root of 42648143 is about 6530.5545706318. The cubic root of 42648143 is about 349.3816100955.

The spelling of 42648143 in words is "forty-two million, six hundred forty-eight thousand, one hundred forty-three".