142249339 has 2 divisors, whose sum is σ = 142249340. Its totient is φ = 142249338.

The previous prime is 142249313. The next prime is 142249369. The reversal of 142249339 is 933942241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142249339 - 2¹³ = 142241147 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142249298 and 142249307.

It is not a weakly prime, because it can be changed into another prime (142249369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71124669 + 71124670.

It is an arithmetic number, because the mean of its divisors is an integer number (71124670).

Almost surely, 2^142249339 is an apocalyptic number.

142249339 is a deficient number, since it is larger than the sum of its proper divisors (1).

142249339 is an equidigital number, since it uses as much as digits as its factorization.

142249339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 37.

The square root of 142249339 is about 11926.8327312829. The cubic root of 142249339 is about 522.0155246089.

The spelling of 142249339 in words is "one hundred forty-two million, two hundred forty-nine thousand, three hundred thirty-nine".