212471503 has 2 divisors, whose sum is σ = 212471504. Its totient is φ = 212471502.

The previous prime is 212471477. The next prime is 212471513. The reversal of 212471503 is 305174212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212471503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212471513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106235751 + 106235752.

It is an arithmetic number, because the mean of its divisors is an integer number (106235752).

Almost surely, 2^212471503 is an apocalyptic number.

212471503 is a deficient number, since it is larger than the sum of its proper divisors (1).

212471503 is an equidigital number, since it uses as much as digits as its factorization.

212471503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 212471503 is about 14576.4022653054. The cubic root of 212471503 is about 596.7149197198.

The spelling of 212471503 in words is "two hundred twelve million, four hundred seventy-one thousand, five hundred three".