213094129 has 2 divisors, whose sum is σ = 213094130. Its totient is φ = 213094128.

The previous prime is 213094127. The next prime is 213094153. The reversal of 213094129 is 921490312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 211266225 + 1827904 = 14535^2 + 1352^2 .

It is a cyclic number.

It is not a de Polignac number, because 213094129 - 2¹ = 213094127 is a prime.

Together with 213094127, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 213094129.

It is not a weakly prime, because it can be changed into another prime (213094121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106547064 + 106547065.

It is an arithmetic number, because the mean of its divisors is an integer number (106547065).

Almost surely, 2^213094129 is an apocalyptic number.

It is an amenable number.

213094129 is a deficient number, since it is larger than the sum of its proper divisors (1).

213094129 is an equidigital number, since it uses as much as digits as its factorization.

213094129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 213094129 is about 14597.7439695317. The cubic root of 213094129 is about 597.2972219699.

The spelling of 213094129 in words is "two hundred thirteen million, ninety-four thousand, one hundred twenty-nine".