142385507 has 16 divisors (see below), whose sum is σ = 159003648. Its totient is φ = 126403680.

The previous prime is 142385471. The next prime is 142385521. The reversal of 142385507 is 705583241.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 142385507 - 2¹⁰ = 142384483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142385527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164558 + ... + 165420.

It is an arithmetic number, because the mean of its divisors is an integer number (9937728).

Almost surely, 2^142385507 is an apocalyptic number.

142385507 is a deficient number, since it is larger than the sum of its proper divisors (16618141).

142385507 is a wasteful number, since it uses less digits than its factorization.

142385507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210.

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 142385507 is about 11932.5398386094. The cubic root of 142385507 is about 522.1820377224.

The spelling of 142385507 in words is "one hundred forty-two million, three hundred eighty-five thousand, five hundred seven".