142285946 has 16 divisors (see below), whose sum is σ = 245086560. Its totient is φ = 61271280.

The previous prime is 142285943. The next prime is 142285961. The reversal of 142285946 is 649582241.

It is a super-2 number, since 2×142285946² = 40490580858229832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142285943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169781 + ... + 170616.

It is an arithmetic number, because the mean of its divisors is an integer number (15317910).

Almost surely, 2^142285946 is an apocalyptic number.

142285946 is a deficient number, since it is larger than the sum of its proper divisors (102800614).

142285946 is a wasteful number, since it uses less digits than its factorization.

142285946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340429.

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

The square root of 142285946 is about 11928.3672814011. The cubic root of 142285946 is about 522.0602999389.

The spelling of 142285946 in words is "one hundred forty-two million, two hundred eighty-five thousand, nine hundred forty-six".