142471 has 4 divisors (see below), whose sum is σ = 162832. Its totient is φ = 122112.

The previous prime is 142469. The next prime is 142501. The reversal of 142471 is 174241.

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

It is a cyclic number.

It is not a de Polignac number, because 142471 - 2¹ = 142469 is a prime.

It is a super-3 number, since 3×142471³ = 8675623022259333, which contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142421) 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, 10170 + ... + 10183.

It is an arithmetic number, because the mean of its divisors is an integer number (40708).

2¹⁴²⁴⁷¹ is an apocalyptic number.

142471 is a deficient number, since it is larger than the sum of its proper divisors (20361).

142471 is an equidigital number, since it uses as much as digits as its factorization.

142471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20360.

The product of its digits is 224, while the sum is 19.

The square root of 142471 is about 377.4533083707. The cubic root of 142471 is about 52.2286528640.

It can be divided in two parts, 14 and 2471, that added together give a triangular number (2485 = T₇₀).

The spelling of 142471 in words is "one hundred forty-two thousand, four hundred seventy-one", and thus it is an iban number.