142941185 has 8 divisors (see below), whose sum is σ = 181619496. Its totient is φ = 107626240.

The previous prime is 142941181. The next prime is 142941187. The reversal of 142941185 is 581149241.

It can be written as a sum of positive squares in 4 ways, for example, as 73068304 + 69872881 = 8548^2 + 8359^2 .

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

It is not a de Polignac number, because 142941185 - 2² = 142941181 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142941181) 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, 840746 + ... + 840915.

It is an arithmetic number, because the mean of its divisors is an integer number (22702437).

Almost surely, 2^142941185 is an apocalyptic number.

It is an amenable number.

142941185 is a deficient number, since it is larger than the sum of its proper divisors (38678311).

142941185 is a wasteful number, since it uses less digits than its factorization.

142941185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1681683.

The product of its digits is 11520, while the sum is 35.

The square root of 142941185 is about 11955.8013114973. The cubic root of 142941185 is about 522.8604504433.

The spelling of 142941185 in words is "one hundred forty-two million, nine hundred forty-one thousand, one hundred eighty-five".