142791 has 8 divisors (see below), whose sum is σ = 207744. Its totient is φ = 86520.

The previous prime is 142789. The next prime is 142799. The reversal of 142791 is 197241.

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

It is not a de Polignac number, because 142791 - 2¹ = 142789 is a prime.

It is a nialpdrome in base 11.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 142791.

It is not an unprimeable number, because it can be changed into a prime (142799) 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, 2131 + ... + 2196.

It is an arithmetic number, because the mean of its divisors is an integer number (25968).

2¹⁴²⁷⁹¹ is an apocalyptic number.

142791 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

142791 is a deficient number, since it is larger than the sum of its proper divisors (64953).

142791 is a wasteful number, since it uses less digits than its factorization.

142791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4341.

The product of its digits is 504, while the sum is 24.

The square root of 142791 is about 377.8769641034. The cubic root of 142791 is about 52.2677267142.

The spelling of 142791 in words is "one hundred forty-two thousand, seven hundred ninety-one".