216134629 has 2 divisors, whose sum is σ = 216134630. Its totient is φ = 216134628.

The previous prime is 216134621. The next prime is 216134663. The reversal of 216134629 is 926431612.

It is a happy number.

It is an a-pointer prime, because the next prime (216134663) can be obtained adding 216134629 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 213890625 + 2244004 = 14625^2 + 1498^2 .

It is a cyclic number.

It is not a de Polignac number, because 216134629 - 2³ = 216134621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 216134594 and 216134603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216134621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108067314 + 108067315.

It is an arithmetic number, because the mean of its divisors is an integer number (108067315).

Almost surely, 2^216134629 is an apocalyptic number.

It is an amenable number.

216134629 is a deficient number, since it is larger than the sum of its proper divisors (1).

216134629 is an equidigital number, since it uses as much as digits as its factorization.

216134629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 34.

The square root of 216134629 is about 14701.5179148277. The cubic root of 216134629 is about 600.1246305917.

The spelling of 216134629 in words is "two hundred sixteen million, one hundred thirty-four thousand, six hundred twenty-nine".