142982739 has 20 divisors (see below), whose sum is σ = 214131280. Its totient is φ = 95081040.

The previous prime is 142982729. The next prime is 142982747. The reversal of 142982739 is 937289241.

142982739 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142982739 - 2¹⁹ = 142458451 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142982694 and 142982703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142982729) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 33549 + ... + 37569.

It is an arithmetic number, because the mean of its divisors is an integer number (10706564).

Almost surely, 2^142982739 is an apocalyptic number.

142982739 is a deficient number, since it is larger than the sum of its proper divisors (71148541).

142982739 is an equidigital number, since it uses as much as digits as its factorization.

142982739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4472 (or 4463 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 142982739 is about 11957.5390026544. The cubic root of 142982739 is about 522.9111119283.

The spelling of 142982739 in words is "one hundred forty-two million, nine hundred eighty-two thousand, seven hundred thirty-nine".