212354533 has 2 divisors, whose sum is σ = 212354534. Its totient is φ = 212354532.

The previous prime is 212354509. The next prime is 212354551. The reversal of 212354533 is 335453212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 206410689 + 5943844 = 14367^2 + 2438^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212354533 is a prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212354833) 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, 106177266 + 106177267.

It is an arithmetic number, because the mean of its divisors is an integer number (106177267).

Almost surely, 2^212354533 is an apocalyptic number.

It is an amenable number.

212354533 is a deficient number, since it is larger than the sum of its proper divisors (1).

212354533 is an equidigital number, since it uses as much as digits as its factorization.

212354533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10800, while the sum is 28.

The square root of 212354533 is about 14572.3894059965. The cubic root of 212354533 is about 596.6053982774.

The spelling of 212354533 in words is "two hundred twelve million, three hundred fifty-four thousand, five hundred thirty-three".