142243379 has 2 divisors, whose sum is σ = 142243380. Its totient is φ = 142243378.

The previous prime is 142243363. The next prime is 142243411. The reversal of 142243379 is 973342241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142243379 - 2⁴ = 142243363 is a prime.

It is a super-4 number, since 4×142243379⁴ (a number of 34 digits) contains 4444 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (142243349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71121689 + 71121690.

It is an arithmetic number, because the mean of its divisors is an integer number (71121690).

Almost surely, 2^142243379 is an apocalyptic number.

142243379 is a deficient number, since it is larger than the sum of its proper divisors (1).

142243379 is an equidigital number, since it uses as much as digits as its factorization.

142243379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 35.

The square root of 142243379 is about 11926.5828718875. The cubic root of 142243379 is about 522.0082339927.

The spelling of 142243379 in words is "one hundred forty-two million, two hundred forty-three thousand, three hundred seventy-nine".