142157 has 2 divisors, whose sum is σ = 142158. Its totient is φ = 142156.

The previous prime is 142151. The next prime is 142159. The reversal of 142157 is 751241.

142157 is nontrivially palindromic in base 7 and base 15.

142157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75076 + 67081 = 274^2 + 259^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142157 is a prime.

It is a super-2 number, since 2×142157² = 40417225298, which contains 22 as substring.

Together with 142159, it forms a pair of twin primes.

It is a Chen prime.

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 142157.

It is not a weakly prime, because it can be changed into another prime (142151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71078 + 71079.

It is an arithmetic number, because the mean of its divisors is an integer number (71079).

2¹⁴²¹⁵⁷ is an apocalyptic number.

It is an amenable number.

142157 is a deficient number, since it is larger than the sum of its proper divisors (1).

142157 is an equidigital number, since it uses as much as digits as its factorization.

142157 is an odious number, because the sum of its binary digits is odd.

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

The square root of 142157 is about 377.0371334497. The cubic root of 142157 is about 52.1902547341.

Adding to 142157 its reverse (751241), we get a palindrome (893398).

The spelling of 142157 in words is "one hundred forty-two thousand, one hundred fifty-seven".