142571 has 8 divisors (see below), whose sum is σ = 167664. Its totient is φ = 119520.

The previous prime is 142567. The next prime is 142573. The reversal of 142571 is 175241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142571 - 2² = 142567 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 142571.

It is not an unprimeable number, because it can be changed into a prime (142573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 356 + ... + 641.

It is an arithmetic number, because the mean of its divisors is an integer number (20958).

2¹⁴²⁵⁷¹ is an apocalyptic number.

142571 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

142571 is a deficient number, since it is larger than the sum of its proper divisors (25093).

142571 is a wasteful number, since it uses less digits than its factorization.

142571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021.

The product of its digits is 280, while the sum is 20.

The square root of 142571 is about 377.5857518498. The cubic root of 142571 is about 52.2408697217.

The spelling of 142571 in words is "one hundred forty-two thousand, five hundred seventy-one".