213632141 has 2 divisors, whose sum is σ = 213632142. Its totient is φ = 213632140.

The previous prime is 213632131. The next prime is 213632171. The reversal of 213632141 is 141236312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 197262025 + 16370116 = 14045^2 + 4046^2 .

It is a cyclic number.

It is not a de Polignac number, because 213632141 - 2²⁶ = 146523277 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213632101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106816070 + 106816071.

It is an arithmetic number, because the mean of its divisors is an integer number (106816071).

Almost surely, 2^213632141 is an apocalyptic number.

It is an amenable number.

213632141 is a deficient number, since it is larger than the sum of its proper divisors (1).

213632141 is an equidigital number, since it uses as much as digits as its factorization.

213632141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 23.

The square root of 213632141 is about 14616.1602686889. The cubic root of 213632141 is about 597.7994773292.

Adding to 213632141 its reverse (141236312), we get a palindrome (354868453).

The spelling of 213632141 in words is "two hundred thirteen million, six hundred thirty-two thousand, one hundred forty-one".