213132001 has 2 divisors, whose sum is σ = 213132002. Its totient is φ = 213132000.

The previous prime is 213131977. The next prime is 213132047. The reversal of 213132001 is 100231312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117072400 + 96059601 = 10820^2 + 9801^2 .

It is a cyclic number.

It is not a de Polignac number, because 213132001 - 2⁵ = 213131969 is a prime.

It is not a weakly prime, because it can be changed into another prime (213132091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106566000 + 106566001.

It is an arithmetic number, because the mean of its divisors is an integer number (106566001).

Almost surely, 2^213132001 is an apocalyptic number.

It is an amenable number.

213132001 is a deficient number, since it is larger than the sum of its proper divisors (1).

213132001 is an equidigital number, since it uses as much as digits as its factorization.

213132001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 213132001 is about 14599.0410986475. The cubic root of 213132001 is about 597.3326046128.

Adding to 213132001 its reverse (100231312), we get a palindrome (313363313).

The spelling of 213132001 in words is "two hundred thirteen million, one hundred thirty-two thousand, one".