210447142 has 8 divisors (see below), whose sum is σ = 326556000. Its totient is φ = 101595144.

The previous prime is 210447121. The next prime is 210447143. The reversal of 210447142 is 241744012.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210447143) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1814142 + ... + 1814257.

It is an arithmetic number, because the mean of its divisors is an integer number (40819500).

Almost surely, 2^210447142 is an apocalyptic number.

210447142 is a deficient number, since it is larger than the sum of its proper divisors (116108858).

210447142 is a wasteful number, since it uses less digits than its factorization.

210447142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3628430.

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 210447142 is about 14506.7964072017. The cubic root of 210447142 is about 594.8137655974.

The spelling of 210447142 in words is "two hundred ten million, four hundred forty-seven thousand, one hundred forty-two".