213230132 has 6 divisors (see below), whose sum is σ = 373152738. Its totient is φ = 106615064.

The previous prime is 213230131. The next prime is 213230137. The reversal of 213230132 is 231032312.

It can be written as a sum of positive squares in only one way, i.e., 136562596 + 76667536 = 11686^2 + 8756^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 213230132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213230131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26653763 + ... + 26653770.

It is an arithmetic number, because the mean of its divisors is an integer number (62192123).

Almost surely, 2^213230132 is an apocalyptic number.

It is an amenable number.

213230132 is a deficient number, since it is larger than the sum of its proper divisors (159922606).

213230132 is a wasteful number, since it uses less digits than its factorization.

213230132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53307537 (or 53307535 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 213230132 is about 14602.4015833013. The cubic root of 213230132 is about 597.4242658864.

Adding to 213230132 its reverse (231032312), we get a palindrome (444262444).

The spelling of 213230132 in words is "two hundred thirteen million, two hundred thirty thousand, one hundred thirty-two".