42274143 has 10 divisors (see below), whose sum is σ = 63150384. Its totient is φ = 28182708.

The previous prime is 42274139. The next prime is 42274147. The reversal of 42274143 is 34147224.

42274143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (42274139) and next prime (42274147).

It is not a de Polignac number, because 42274143 - 2² = 42274139 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42274147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 260871 + ... + 261032.

Almost surely, 2^42274143 is an apocalyptic number.

42274143 is a deficient number, since it is larger than the sum of its proper divisors (20876241).

42274143 is an equidigital number, since it uses as much as digits as its factorization.

42274143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521915 (or 521906 counting only the distinct ones).

The product of its digits is 5376, while the sum is 27.

The square root of 42274143 is about 6501.8568886127. The cubic root of 42274143 is about 348.3573172948.

The spelling of 42274143 in words is "forty-two million, two hundred seventy-four thousand, one hundred forty-three".