142100389 has 2 divisors, whose sum is σ = 142100390. Its totient is φ = 142100388.

The previous prime is 142100369. The next prime is 142100393. The reversal of 142100389 is 983001241.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126180289 + 15920100 = 11233^2 + 3990^2 .

It is a cyclic number.

It is not a de Polignac number, because 142100389 - 2²⁷ = 7882661 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 (142100339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71050194 + 71050195.

It is an arithmetic number, because the mean of its divisors is an integer number (71050195).

Almost surely, 2^142100389 is an apocalyptic number.

It is an amenable number.

142100389 is a deficient number, since it is larger than the sum of its proper divisors (1).

142100389 is an equidigital number, since it uses as much as digits as its factorization.

142100389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 142100389 is about 11920.5867724706. The cubic root of 142100389 is about 521.8332592812.

The spelling of 142100389 in words is "one hundred forty-two million, one hundred thousand, three hundred eighty-nine".