212361533 has 2 divisors, whose sum is σ = 212361534. Its totient is φ = 212361532.

The previous prime is 212361511. The next prime is 212361581. The reversal of 212361533 is 335163212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137053849 + 75307684 = 11707^2 + 8678^2 .

It is a cyclic number.

It is not a de Polignac number, because 212361533 - 2¹² = 212357437 is a prime.

It is a super-2 number, since 2×212361533² = 90194841396220178, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212361503) 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, 106180766 + 106180767.

It is an arithmetic number, because the mean of its divisors is an integer number (106180767).

Almost surely, 2^212361533 is an apocalyptic number.

It is an amenable number.

212361533 is a deficient number, since it is larger than the sum of its proper divisors (1).

212361533 is an equidigital number, since it uses as much as digits as its factorization.

212361533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 26.

The square root of 212361533 is about 14572.6295842583. The cubic root of 212361533 is about 596.6119536541.

The spelling of 212361533 in words is "two hundred twelve million, three hundred sixty-one thousand, five hundred thirty-three".