142237 has 2 divisors, whose sum is σ = 142238. Its totient is φ = 142236.

The previous prime is 142231. The next prime is 142271. The reversal of 142237 is 732241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133956 + 8281 = 366^2 + 91^2 .

It is a cyclic number.

It is not a de Polignac number, because 142237 - 2¹⁵ = 109469 is a prime.

It is a d-powerful number, because it can be written as 1 + 4⁷ + 2³ + 2¹³ + 3 + 7⁶ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71118 + 71119.

It is an arithmetic number, because the mean of its divisors is an integer number (71119).

2¹⁴²²³⁷ is an apocalyptic number.

It is an amenable number.

142237 is a deficient number, since it is larger than the sum of its proper divisors (1).

142237 is an equidigital number, since it uses as much as digits as its factorization.

142237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 336, while the sum is 19.

The square root of 142237 is about 377.1432088743. The cubic root of 142237 is about 52.2000430606.

Adding to 142237 its reverse (732241), we get a palindrome (874478).

The spelling of 142237 in words is "one hundred forty-two thousand, two hundred thirty-seven".