210051442 has 16 divisors (see below), whose sum is σ = 324469080. Its totient is φ = 101910528.

The previous prime is 210051427. The next prime is 210051451. The reversal of 210051442 is 244150012.

210051442 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 180338041 + 29713401 = 13429^2 + 5451^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25138 + ... + 32434.

Almost surely, 2^210051442 is an apocalyptic number.

210051442 is a deficient number, since it is larger than the sum of its proper divisors (114417638).

210051442 is a wasteful number, since it uses less digits than its factorization.

210051442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7725.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 210051442 is about 14493.1515551311. The cubic root of 210051442 is about 594.4407257953.

The spelling of 210051442 in words is "two hundred ten million, fifty-one thousand, four hundred forty-two".