142381850 has 48 divisors (see below), whose sum is σ = 290653272. Its totient is φ = 51567360.

The previous prime is 142381829. The next prime is 142381861. The reversal of 142381850 is 58183241.

It can be written as a sum of positive squares in 12 ways, for example, as 12033961 + 130347889 = 3469^2 + 11417^2 .

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 in 23 ways as a sum of consecutive naturals, for example, 32384 + ... + 36516.

Almost surely, 2^142381850 is an apocalyptic number.

142381850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142381850 is an abundant number, since it is smaller than the sum of its proper divisors (148271422).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142381850 is a wasteful number, since it uses less digits than its factorization.

142381850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4211 (or 4206 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 142381850 is about 11932.3866011792. The cubic root of 142381850 is about 522.1775671456.

The spelling of 142381850 in words is "one hundred forty-two million, three hundred eighty-one thousand, eight hundred fifty".