213246907 has 2 divisors, whose sum is σ = 213246908. Its totient is φ = 213246906.

The previous prime is 213246877. The next prime is 213246941. The reversal of 213246907 is 709642312.

It is an a-pointer prime, because the next prime (213246941) can be obtained adding 213246907 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213246907 - 2¹⁹ = 212722619 is a prime.

It is not a weakly prime, because it can be changed into another prime (213243907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106623453 + 106623454.

It is an arithmetic number, because the mean of its divisors is an integer number (106623454).

Almost surely, 2^213246907 is an apocalyptic number.

213246907 is a deficient number, since it is larger than the sum of its proper divisors (1).

213246907 is an equidigital number, since it uses as much as digits as its factorization.

213246907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 213246907 is about 14602.9759638233. The cubic root of 213246907 is about 597.4399321045.

The spelling of 213246907 in words is "two hundred thirteen million, two hundred forty-six thousand, nine hundred seven".