142529399 has 2 divisors, whose sum is σ = 142529400. Its totient is φ = 142529398.

The previous prime is 142529389. The next prime is 142529419. The reversal of 142529399 is 993925241.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142529399 - 2⁴ = 142529383 is a prime.

It is a Sophie Germain 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 (142529389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71264699 + 71264700.

It is an arithmetic number, because the mean of its divisors is an integer number (71264700).

Almost surely, 2^142529399 is an apocalyptic number.

142529399 is a deficient number, since it is larger than the sum of its proper divisors (1).

142529399 is an equidigital number, since it uses as much as digits as its factorization.

142529399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 174960, while the sum is 44.

The square root of 142529399 is about 11938.5677114133. The cubic root of 142529399 is about 522.3578808089.

The spelling of 142529399 in words is "one hundred forty-two million, five hundred twenty-nine thousand, three hundred ninety-nine".