142019441 has 2 divisors, whose sum is σ = 142019442. Its totient is φ = 142019440.

The previous prime is 142019429. The next prime is 142019453. The reversal of 142019441 is 144910241.

142019441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (142019429) and next prime (142019453).

It can be written as a sum of positive squares in only one way, i.e., 114404416 + 27615025 = 10696^2 + 5255^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142019441 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142019441.

It is not a weakly prime, because it can be changed into another prime (142019461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71009720 + 71009721.

It is an arithmetic number, because the mean of its divisors is an integer number (71009721).

Almost surely, 2^142019441 is an apocalyptic number.

It is an amenable number.

142019441 is a deficient number, since it is larger than the sum of its proper divisors (1).

142019441 is an equidigital number, since it uses as much as digits as its factorization.

142019441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 142019441 is about 11917.1909861343. The cubic root of 142019441 is about 521.7341523928.

Adding to 142019441 its reverse (144910241), we get a palindrome (286929682).

The spelling of 142019441 in words is "one hundred forty-two million, nineteen thousand, four hundred forty-one".