142797 has 4 divisors (see below), whose sum is σ = 190400. Its totient is φ = 95196.

The previous prime is 142789. The next prime is 142799. The reversal of 142797 is 797241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 797241 = 3 ⋅265747.

It is not a de Polignac number, because 142797 - 2³ = 142789 is a prime.

It is a D-number.

It is a Duffinian number.

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 142797.

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 3 ways as a sum of consecutive naturals, for example, 23797 + ... + 23802.

It is an arithmetic number, because the mean of its divisors is an integer number (47600).

2¹⁴²⁷⁹⁷ is an apocalyptic number.

It is an amenable number.

142797 is a deficient number, since it is larger than the sum of its proper divisors (47603).

142797 is an equidigital number, since it uses as much as digits as its factorization.

142797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47602.

The product of its digits is 3528, while the sum is 30.

The square root of 142797 is about 377.8849031120. The cubic root of 142797 is about 52.2684587911.

It can be divided in two parts, 142 and 797, that added together give a palindrome (939).

The spelling of 142797 in words is "one hundred forty-two thousand, seven hundred ninety-seven".