213241849 has 2 divisors, whose sum is σ = 213241850. Its totient is φ = 213241848.

The previous prime is 213241783. The next prime is 213241877. The reversal of 213241849 is 948142312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 151462249 + 61779600 = 12307^2 + 7860^2 .

It is a cyclic number.

It is not a de Polignac number, because 213241849 - 2⁹ = 213241337 is a prime.

It is not a weakly prime, because it can be changed into another prime (213241879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106620924 + 106620925.

It is an arithmetic number, because the mean of its divisors is an integer number (106620925).

Almost surely, 2^213241849 is an apocalyptic number.

It is an amenable number.

213241849 is a deficient number, since it is larger than the sum of its proper divisors (1).

213241849 is an equidigital number, since it uses as much as digits as its factorization.

213241849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 34.

The square root of 213241849 is about 14602.8027789188. The cubic root of 213241849 is about 597.4352085110.

The spelling of 213241849 in words is "two hundred thirteen million, two hundred forty-one thousand, eight hundred forty-nine".