142144243 has 2 divisors, whose sum is σ = 142144244. Its totient is φ = 142144242.

The previous prime is 142144237. The next prime is 142144273. The reversal of 142144243 is 342441241.

It is a weak prime.

It is an emirp because it is prime and its reverse (342441241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142144243 - 2¹³ = 142136051 is a prime.

It is equal to p_8026333 and since 142144243 and 8026333 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (142144273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71072121 + 71072122.

It is an arithmetic number, because the mean of its divisors is an integer number (71072122).

Almost surely, 2^142144243 is an apocalyptic number.

142144243 is a deficient number, since it is larger than the sum of its proper divisors (1).

142144243 is an equidigital number, since it uses as much as digits as its factorization.

142144243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3072, while the sum is 25.

The square root of 142144243 is about 11922.4260534507. The cubic root of 142144243 is about 521.8869352357.

Adding to 142144243 its reverse (342441241), we get a palindrome (484585484).

The spelling of 142144243 in words is "one hundred forty-two million, one hundred forty-four thousand, two hundred forty-three".