210020134 has 8 divisors (see below), whose sum is σ = 315091800. Its totient is φ = 104989536.

The previous prime is 210020101. The next prime is 210020137. The reversal of 210020134 is 431020012.

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 (210020137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13857 + ... + 24739.

It is an arithmetic number, because the mean of its divisors is an integer number (39386475).

Almost surely, 2^210020134 is an apocalyptic number.

210020134 is a deficient number, since it is larger than the sum of its proper divisors (105071666).

210020134 is a wasteful number, since it uses less digits than its factorization.

210020134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20534.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 210020134 is about 14492.0714185378. The cubic root of 210020134 is about 594.4111906890.

Adding to 210020134 its reverse (431020012), we get a palindrome (641040146).

The spelling of 210020134 in words is "two hundred ten million, twenty thousand, one hundred thirty-four".