210351132 has 144 divisors (see below), whose sum is σ = 588736512. Its totient is φ = 63060480.

The previous prime is 210351131. The next prime is 210351137. The reversal of 210351132 is 231153012.

Added to its reverse (231153012) it gives a square (441504144 = 21012²).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210351131) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2042193 + ... + 2042295.

It is an arithmetic number, because the mean of its divisors is an integer number (4088448).

Almost surely, 2^210351132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210351132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294368256).

210351132 is an abundant number, since it is smaller than the sum of its proper divisors (378385380).

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

210351132 is a wasteful number, since it uses less digits than its factorization.

210351132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 243 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 210351132 is about 14503.4868910893. The cubic root of 210351132 is about 594.7232967099.

Adding to 210351132 its reverse (231153012), we get a square (441504144 = 21012²).

It can be divided in two parts, 2103 and 51132, that added together give a palindrome (53235).

The spelling of 210351132 in words is "two hundred ten million, three hundred fifty-one thousand, one hundred thirty-two".