210002130 has 96 divisors (see below), whose sum is σ = 591252480. Its totient is φ = 51408000.

The previous prime is 210002119. The next prime is 210002141. The reversal of 210002130 is 31200012.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (210002119) and next prime (210002141).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 279255 + ... + 280005.

It is an arithmetic number, because the mean of its divisors is an integer number (6158880).

Almost surely, 2^210002130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210002130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295626240).

210002130 is an abundant number, since it is smaller than the sum of its proper divisors (381250350).

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

210002130 is a wasteful number, since it uses less digits than its factorization.

210002130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016 (or 1013 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 210002130 is about 14491.4502379852. The cubic root of 210002130 is about 594.3942048812.

Adding to 210002130 its reverse (31200012), we get a palindrome (241202142).

The spelling of 210002130 in words is "two hundred ten million, two thousand, one hundred thirty".