212152307 has 2 divisors, whose sum is σ = 212152308. Its totient is φ = 212152306.

The previous prime is 212152301. The next prime is 212152319. The reversal of 212152307 is 703251212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212152307 - 2¹⁸ = 211890163 is a prime.

It is not a weakly prime, because it can be changed into another prime (212152301) 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, 106076153 + 106076154.

It is an arithmetic number, because the mean of its divisors is an integer number (106076154).

Almost surely, 2^212152307 is an apocalyptic number.

212152307 is a deficient number, since it is larger than the sum of its proper divisors (1).

212152307 is an equidigital number, since it uses as much as digits as its factorization.

212152307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 212152307 is about 14565.4490833616. The cubic root of 212152307 is about 596.4159549597.

The spelling of 212152307 in words is "two hundred twelve million, one hundred fifty-two thousand, three hundred seven".