212353129 has 2 divisors, whose sum is σ = 212353130. Its totient is φ = 212353128.

The previous prime is 212353121. The next prime is 212353147. The reversal of 212353129 is 921353212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 189695529 + 22657600 = 13773^2 + 4760^2 .

It is a cyclic number.

It is not a de Polignac number, because 212353129 - 2³ = 212353121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212353097 and 212353106.

It is not a weakly prime, because it can be changed into another prime (212353121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106176564 + 106176565.

It is an arithmetic number, because the mean of its divisors is an integer number (106176565).

Almost surely, 2^212353129 is an apocalyptic number.

It is an amenable number.

212353129 is a deficient number, since it is larger than the sum of its proper divisors (1).

212353129 is an equidigital number, since it uses as much as digits as its factorization.

212353129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 28.

The square root of 212353129 is about 14572.3412326228. The cubic root of 212353129 is about 596.6040834387.

The spelling of 212353129 in words is "two hundred twelve million, three hundred fifty-three thousand, one hundred twenty-nine".