634242153 has 8 divisors (see below), whose sum is σ = 859989600. Its totient is φ = 415661408.

The previous prime is 634242107. The next prime is 634242199. The reversal of 634242153 is 351242436.

634242153 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (634242107) and next prime (634242199).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 634242153 - 2¹⁰ = 634241129 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 634242153.

It is not an unprimeable number, because it can be changed into a prime (634242353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1791468 + ... + 1791821.

It is an arithmetic number, because the mean of its divisors is an integer number (107498700).

Almost surely, 2^634242153 is an apocalyptic number.

It is an amenable number.

634242153 is a deficient number, since it is larger than the sum of its proper divisors (225747447).

634242153 is a wasteful number, since it uses less digits than its factorization.

634242153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3583351.

The product of its digits is 17280, while the sum is 30.

The square root of 634242153 is about 25184.1647270661. The cubic root of 634242153 is about 859.1817316004.

Adding to 634242153 its reverse (351242436), we get a palindrome (985484589).

The spelling of 634242153 in words is "six hundred thirty-four million, two hundred forty-two thousand, one hundred fifty-three".