427143 has 4 divisors (see below), whose sum is σ = 569528. Its totient is φ = 284760.

The previous prime is 427117. The next prime is 427151. The reversal of 427143 is 341724.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 427143 - 2⁶ = 427079 is a prime.

It is a super-2 number, since 2×427143² = 364902284898, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

427143 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71188 + ... + 71193.

It is an arithmetic number, because the mean of its divisors is an integer number (142382).

2⁴²⁷¹⁴³ is an apocalyptic number.

427143 is a deficient number, since it is larger than the sum of its proper divisors (142385).

427143 is a wasteful number, since it uses less digits than its factorization.

427143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142384.

The product of its digits is 672, while the sum is 21.

The square root of 427143 is about 653.5617797883. The cubic root of 427143 is about 75.3108873182.

Adding to 427143 its reverse (341724), we get a palindrome (768867).

The spelling of 427143 in words is "four hundred twenty-seven thousand, one hundred forty-three", and thus it is an iban number.