142119589 has 2 divisors, whose sum is σ = 142119590. Its totient is φ = 142119588.

The previous prime is 142119583. The next prime is 142119619. The reversal of 142119589 is 985911241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106812225 + 35307364 = 10335^2 + 5942^2 .

It is a cyclic number.

It is not a de Polignac number, because 142119589 - 2³ = 142119581 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142119581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71059794 + 71059795.

It is an arithmetic number, because the mean of its divisors is an integer number (71059795).

Almost surely, 2^142119589 is an apocalyptic number.

It is an amenable number.

142119589 is a deficient number, since it is larger than the sum of its proper divisors (1).

142119589 is an equidigital number, since it uses as much as digits as its factorization.

142119589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 40.

The square root of 142119589 is about 11921.3920747537. The cubic root of 142119589 is about 521.8567608528.

The spelling of 142119589 in words is "one hundred forty-two million, one hundred nineteen thousand, five hundred eighty-nine".