634854133 has 2 divisors, whose sum is σ = 634854134. Its totient is φ = 634854132.

The previous prime is 634854131. The next prime is 634854139. The reversal of 634854133 is 331458436.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 527483089 + 107371044 = 22967^2 + 10362^2 .

It is a cyclic number.

It is not a de Polignac number, because 634854133 - 2¹ = 634854131 is a prime.

Together with 634854131, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 634854092 and 634854101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (634854131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317427066 + 317427067.

It is an arithmetic number, because the mean of its divisors is an integer number (317427067).

Almost surely, 2^634854133 is an apocalyptic number.

It is an amenable number.

634854133 is a deficient number, since it is larger than the sum of its proper divisors (1).

634854133 is an equidigital number, since it uses as much as digits as its factorization.

634854133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 37.

The square root of 634854133 is about 25196.3118928148. The cubic root of 634854133 is about 859.4579841373.

The spelling of 634854133 in words is "six hundred thirty-four million, eight hundred fifty-four thousand, one hundred thirty-three".