213162149 has 2 divisors, whose sum is σ = 213162150. Its totient is φ = 213162148.

The previous prime is 213162139. The next prime is 213162161. The reversal of 213162149 is 941261312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 204204100 + 8958049 = 14290^2 + 2993^2 .

It is a cyclic number.

It is not a de Polignac number, because 213162149 - 2²⁴ = 196384933 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213162119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106581074 + 106581075.

It is an arithmetic number, because the mean of its divisors is an integer number (106581075).

Almost surely, 2^213162149 is an apocalyptic number.

It is an amenable number.

213162149 is a deficient number, since it is larger than the sum of its proper divisors (1).

213162149 is an equidigital number, since it uses as much as digits as its factorization.

213162149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 29.

The square root of 213162149 is about 14600.0735957049. The cubic root of 213162149 is about 597.3607679642.

The spelling of 213162149 in words is "two hundred thirteen million, one hundred sixty-two thousand, one hundred forty-nine".