142998439 has 2 divisors, whose sum is σ = 142998440. Its totient is φ = 142998438.

The previous prime is 142998413. The next prime is 142998463. The reversal of 142998439 is 934899241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142998439 - 2¹⁷ = 142867367 is a prime.

It is a super-3 number, since 3×142998439³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142998392 and 142998401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142998409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71499219 + 71499220.

It is an arithmetic number, because the mean of its divisors is an integer number (71499220).

Almost surely, 2^142998439 is an apocalyptic number.

142998439 is a deficient number, since it is larger than the sum of its proper divisors (1).

142998439 is an equidigital number, since it uses as much as digits as its factorization.

142998439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 559872, while the sum is 49.

The square root of 142998439 is about 11958.1954742344. The cubic root of 142998439 is about 522.9302503783.

The spelling of 142998439 in words is "one hundred forty-two million, nine hundred ninety-eight thousand, four hundred thirty-nine".