142991852 has 6 divisors (see below), whose sum is σ = 250235748. Its totient is φ = 71495924.

The previous prime is 142991833. The next prime is 142991881. The reversal of 142991852 is 258199241.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 17873978 + ... + 17873985.

It is an arithmetic number, because the mean of its divisors is an integer number (41705958).

Almost surely, 2^142991852 is an apocalyptic number.

It is an amenable number.

142991852 is a deficient number, since it is larger than the sum of its proper divisors (107243896).

142991852 is a wasteful number, since it uses less digits than its factorization.

142991852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35747967 (or 35747965 counting only the distinct ones).

The product of its digits is 51840, while the sum is 41.

The square root of 142991852 is about 11957.9200532534. The cubic root of 142991852 is about 522.9222209329.

The spelling of 142991852 in words is "one hundred forty-two million, nine hundred ninety-one thousand, eight hundred fifty-two".