212254403 has 2 divisors, whose sum is σ = 212254404. Its totient is φ = 212254402.

The previous prime is 212254391. The next prime is 212254433. The reversal of 212254403 is 304452212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212254403 - 2¹² = 212250307 is a prime.

It is not a weakly prime, because it can be changed into another prime (212254433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106127201 + 106127202.

It is an arithmetic number, because the mean of its divisors is an integer number (106127202).

Almost surely, 2^212254403 is an apocalyptic number.

212254403 is a deficient number, since it is larger than the sum of its proper divisors (1).

212254403 is an equidigital number, since it uses as much as digits as its factorization.

212254403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 212254403 is about 14568.9533941186. The cubic root of 212254403 is about 596.5116125229.

The spelling of 212254403 in words is "two hundred twelve million, two hundred fifty-four thousand, four hundred three".