210142000 has 40 divisors (see below), whose sum is σ = 508128192. Its totient is φ = 84056000.

The previous prime is 210141983. The next prime is 210142021. The reversal of 210142000 is 241012.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50536 + ... + 54535.

Almost surely, 2^210142000 is an apocalyptic number.

210142000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210142000 is an abundant number, since it is smaller than the sum of its proper divisors (297986192).

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

210142000 is a wasteful number, since it uses less digits than its factorization.

210142000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105094 (or 105078 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 210142000 is about 14496.2753836977. The cubic root of 210142000 is about 594.5261392042.

Adding to 210142000 its reverse (241012), we get a palindrome (210383012).

The spelling of 210142000 in words is "two hundred ten million, one hundred forty-two thousand".