32312213 has 2 divisors, whose sum is σ = 32312214. Its totient is φ = 32312212.

The previous prime is 32312201. The next prime is 32312239. The reversal of 32312213 is 31221323.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28536964 + 3775249 = 5342^2 + 1943^2 .

It is a cyclic number.

It is not a de Polignac number, because 32312213 - 2⁸ = 32311957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 32312191 and 32312200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32312243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16156106 + 16156107.

It is an arithmetic number, because the mean of its divisors is an integer number (16156107).

Almost surely, 2^32312213 is an apocalyptic number.

It is an amenable number.

32312213 is a deficient number, since it is larger than the sum of its proper divisors (1).

32312213 is an equidigital number, since it uses as much as digits as its factorization.

32312213 is an evil number, because the sum of its binary digits is even.

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

The square root of 32312213 is about 5684.3832559038. The cubic root of 32312213 is about 318.5093856055.

Adding to 32312213 its reverse (31221323), we get a palindrome (63533536).

The spelling of 32312213 in words is "thirty-two million, three hundred twelve thousand, two hundred thirteen".