42356143 has 6 divisors (see below), whose sum is σ = 43065672. Its totient is φ = 41658120.

The previous prime is 42356123. The next prime is 42356173. The reversal of 42356143 is 34165324.

It is not a de Polignac number, because 42356143 - 2¹³ = 42347951 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 (42356113) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1971 + ... + 9412.

It is an arithmetic number, because the mean of its divisors is an integer number (7177612).

Almost surely, 2^42356143 is an apocalyptic number.

42356143 is a deficient number, since it is larger than the sum of its proper divisors (709529).

42356143 is an equidigital number, since it uses as much as digits as its factorization.

42356143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11505 (or 11444 counting only the distinct ones).

The product of its digits is 8640, while the sum is 28.

The square root of 42356143 is about 6508.1597245304. The cubic root of 42356143 is about 348.5824103683.

The spelling of 42356143 in words is "forty-two million, three hundred fifty-six thousand, one hundred forty-three".