213652633 has 2 divisors, whose sum is σ = 213652634. Its totient is φ = 213652632.

The previous prime is 213652613. The next prime is 213652639. The reversal of 213652633 is 336256312.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 179640409 + 34012224 = 13403^2 + 5832^2 .

It is a cyclic number.

It is not a de Polignac number, because 213652633 - 2⁵ = 213652601 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213652595 and 213652604.

It is not a weakly prime, because it can be changed into another prime (213652639) 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, 106826316 + 106826317.

It is an arithmetic number, because the mean of its divisors is an integer number (106826317).

Almost surely, 2^213652633 is an apocalyptic number.

It is an amenable number.

213652633 is a deficient number, since it is larger than the sum of its proper divisors (1).

213652633 is an equidigital number, since it uses as much as digits as its factorization.

213652633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 31.

The square root of 213652633 is about 14616.8612567815. The cubic root of 213652633 is about 597.8185907378.

The spelling of 213652633 in words is "two hundred thirteen million, six hundred fifty-two thousand, six hundred thirty-three".