142985135 has 8 divisors (see below), whose sum is σ = 179042400. Its totient is φ = 109414624.

The previous prime is 142985093. The next prime is 142985137. The reversal of 142985135 is 531589241.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142985135 - 2¹² = 142981039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142985137) 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, 621560 + ... + 621789.

It is an arithmetic number, because the mean of its divisors is an integer number (22380300).

Almost surely, 2^142985135 is an apocalyptic number.

142985135 is a deficient number, since it is larger than the sum of its proper divisors (36057265).

142985135 is a wasteful number, since it uses less digits than its factorization.

142985135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243377.

The product of its digits is 43200, while the sum is 38.

The square root of 142985135 is about 11957.6391900743. The cubic root of 142985135 is about 522.9140327658.

The spelling of 142985135 in words is "one hundred forty-two million, nine hundred eighty-five thousand, one hundred thirty-five".