213202291 has 2 divisors, whose sum is σ = 213202292. Its totient is φ = 213202290.

The previous prime is 213202273. The next prime is 213202303. The reversal of 213202291 is 192202312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213202291 - 2¹¹ = 213200243 is a prime.

It is not a weakly prime, because it can be changed into another prime (213202261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106601145 + 106601146.

It is an arithmetic number, because the mean of its divisors is an integer number (106601146).

Almost surely, 2^213202291 is an apocalyptic number.

213202291 is a deficient number, since it is larger than the sum of its proper divisors (1).

213202291 is an equidigital number, since it uses as much as digits as its factorization.

213202291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 213202291 is about 14601.4482500881. The cubic root of 213202291 is about 597.3982632872.

The spelling of 213202291 in words is "two hundred thirteen million, two hundred two thousand, two hundred ninety-one".