142685429 has 2 divisors, whose sum is σ = 142685430. Its totient is φ = 142685428.

The previous prime is 142685419. The next prime is 142685447. The reversal of 142685429 is 924586241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120340900 + 22344529 = 10970^2 + 4727^2 .

It is a cyclic number.

It is not a de Polignac number, because 142685429 - 2¹² = 142681333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142685419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71342714 + 71342715.

It is an arithmetic number, because the mean of its divisors is an integer number (71342715).

Almost surely, 2^142685429 is an apocalyptic number.

It is an amenable number.

142685429 is a deficient number, since it is larger than the sum of its proper divisors (1).

142685429 is an equidigital number, since it uses as much as digits as its factorization.

142685429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 138240, while the sum is 41.

The square root of 142685429 is about 11945.1006274539. The cubic root of 142685429 is about 522.5484234328.

The spelling of 142685429 in words is "one hundred forty-two million, six hundred eighty-five thousand, four hundred twenty-nine".