142420685 has 16 divisors (see below), whose sum is σ = 186986880. Its totient is φ = 103275840.

The previous prime is 142420661. The next prime is 142420697. The reversal of 142420685 is 586024241.

It is not a de Polignac number, because 142420685 - 2¹⁰ = 142419661 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16139 + ... + 23351.

It is an arithmetic number, because the mean of its divisors is an integer number (11686680).

Almost surely, 2^142420685 is an apocalyptic number.

It is an amenable number.

142420685 is a deficient number, since it is larger than the sum of its proper divisors (44566195).

142420685 is a wasteful number, since it uses less digits than its factorization.

142420685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7588.

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 142420685 is about 11934.0137841382. The cubic root of 142420685 is about 522.2250379021.

The spelling of 142420685 in words is "one hundred forty-two million, four hundred twenty thousand, six hundred eighty-five".