211450207 has 2 divisors, whose sum is σ = 211450208. Its totient is φ = 211450206.

The previous prime is 211450139. The next prime is 211450237. The reversal of 211450207 is 702054112.

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-211450207 is a prime.

It is a super-2 number, since 2×211450207² = 89422380080685698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211450237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105725103 + 105725104.

It is an arithmetic number, because the mean of its divisors is an integer number (105725104).

Almost surely, 2^211450207 is an apocalyptic number.

211450207 is a deficient number, since it is larger than the sum of its proper divisors (1).

211450207 is an equidigital number, since it uses as much as digits as its factorization.

211450207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 211450207 is about 14541.3275528749. The cubic root of 211450207 is about 595.7572985582.

The spelling of 211450207 in words is "two hundred eleven million, four hundred fifty thousand, two hundred seven".