634135069 has 4 divisors (see below), whose sum is σ = 649601820. Its totient is φ = 618668320.

The previous prime is 634135067. The next prime is 634135079. The reversal of 634135069 is 960531436.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 67076100 + 567058969 = 8190^2 + 23813^2 .

It is a cyclic number.

It is not a de Polignac number, because 634135069 - 2¹ = 634135067 is a prime.

It is a super-2 number, since 2×634135069² = 804254571471269522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634135067) 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 in 3 ways as a sum of consecutive naturals, for example, 7733314 + ... + 7733395.

It is an arithmetic number, because the mean of its divisors is an integer number (162400455).

Almost surely, 2^634135069 is an apocalyptic number.

It is an amenable number.

634135069 is a deficient number, since it is larger than the sum of its proper divisors (15466751).

634135069 is a wasteful number, since it uses less digits than its factorization.

634135069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15466750.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 634135069 is about 25182.0386188251. The cubic root of 634135069 is about 859.1333747835.

The spelling of 634135069 in words is "six hundred thirty-four million, one hundred thirty-five thousand, sixty-nine".