212403463 has 2 divisors, whose sum is σ = 212403464. Its totient is φ = 212403462.

The previous prime is 212403439. The next prime is 212403469. The reversal of 212403463 is 364304212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212403463 - 2⁵ = 212403431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212403469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106201731 + 106201732.

It is an arithmetic number, because the mean of its divisors is an integer number (106201732).

Almost surely, 2^212403463 is an apocalyptic number.

212403463 is a deficient number, since it is larger than the sum of its proper divisors (1).

212403463 is an equidigital number, since it uses as much as digits as its factorization.

212403463 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 212403463 is about 14574.0681691832. The cubic root of 212403463 is about 596.6512173453.

Adding to 212403463 its reverse (364304212), we get a palindrome (576707675).

The spelling of 212403463 in words is "two hundred twelve million, four hundred three thousand, four hundred sixty-three".