210134121 has 8 divisors (see below), whose sum is σ = 280522560. Its totient is φ = 139917552.

The previous prime is 210134117. The next prime is 210134123. The reversal of 210134121 is 121431012.

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

It is not a de Polignac number, because 210134121 - 2² = 210134117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210134121.

It is not an unprimeable number, because it can be changed into a prime (210134123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40086 + ... + 45023.

It is an arithmetic number, because the mean of its divisors is an integer number (35065320).

Almost surely, 2^210134121 is an apocalyptic number.

It is an amenable number.

210134121 is a deficient number, since it is larger than the sum of its proper divisors (70388439).

210134121 is an equidigital number, since it uses as much as digits as its factorization.

210134121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85935.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 210134121 is about 14496.0036216883. The cubic root of 210134121 is about 594.5187087841.

Adding to 210134121 its reverse (121431012), we get a palindrome (331565133).

The spelling of 210134121 in words is "two hundred ten million, one hundred thirty-four thousand, one hundred twenty-one".