142939713 has 24 divisors (see below), whose sum is σ = 225473760. Its totient is φ = 80290560.

The previous prime is 142939703. The next prime is 142939721. The reversal of 142939713 is 317939241.

It is not a de Polignac number, because 142939713 - 2⁵ = 142939681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142939703) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 433 + ... + 16913.

It is an arithmetic number, because the mean of its divisors is an integer number (9394740).

Almost surely, 2^142939713 is an apocalyptic number.

It is an amenable number.

142939713 is a deficient number, since it is larger than the sum of its proper divisors (82534047).

142939713 is a wasteful number, since it uses less digits than its factorization.

142939713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16557 (or 16550 counting only the distinct ones).

The product of its digits is 40824, while the sum is 39.

The square root of 142939713 is about 11955.7397512659. The cubic root of 142939713 is about 522.8586556416.

The spelling of 142939713 in words is "one hundred forty-two million, nine hundred thirty-nine thousand, seven hundred thirteen".