213550297 has 2 divisors, whose sum is σ = 213550298. Its totient is φ = 213550296.

The previous prime is 213550247. The next prime is 213550307. The reversal of 213550297 is 792055312.

213550297 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 166435801 + 47114496 = 12901^2 + 6864^2 .

It is a cyclic number.

It is not a de Polignac number, because 213550297 - 2¹¹ = 213548249 is a prime.

It is not a weakly prime, because it can be changed into another prime (213550247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106775148 + 106775149.

It is an arithmetic number, because the mean of its divisors is an integer number (106775149).

Almost surely, 2^213550297 is an apocalyptic number.

It is an amenable number.

213550297 is a deficient number, since it is larger than the sum of its proper divisors (1).

213550297 is an equidigital number, since it uses as much as digits as its factorization.

213550297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 213550297 is about 14613.3602227551. The cubic root of 213550297 is about 597.7231271609.

The spelling of 213550297 in words is "two hundred thirteen million, five hundred fifty thousand, two hundred ninety-seven".