142381829 has 2 divisors, whose sum is σ = 142381830. Its totient is φ = 142381828.

The previous prime is 142381823. The next prime is 142381861. The reversal of 142381829 is 928183241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82319329 + 60062500 = 9073^2 + 7750^2 .

It is a cyclic number.

It is not a de Polignac number, because 142381829 - 2²⁰ = 141333253 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 142381792 and 142381801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142381823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71190914 + 71190915.

It is an arithmetic number, because the mean of its divisors is an integer number (71190915).

Almost surely, 2^142381829 is an apocalyptic number.

It is an amenable number.

142381829 is a deficient number, since it is larger than the sum of its proper divisors (1).

142381829 is an equidigital number, since it uses as much as digits as its factorization.

142381829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 38.

The square root of 142381829 is about 11932.3857212211. The cubic root of 142381829 is about 522.1775414735.

The spelling of 142381829 in words is "one hundred forty-two million, three hundred eighty-one thousand, eight hundred twenty-nine".