635134222403 has 4 divisors (see below), whose sum is σ = 635136883968. Its totient is φ = 635131560840.

The previous prime is 635134222391. The next prime is 635134222423. The reversal of 635134222403 is 304222431536.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 635134222403 - 2⁸ = 635134222147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (635134222423) 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 in 3 ways as a sum of consecutive naturals, for example, 933251 + ... + 1463292.

It is an arithmetic number, because the mean of its divisors is an integer number (158784220992).

Almost surely, 2^635134222403 is an apocalyptic number.

635134222403 is a deficient number, since it is larger than the sum of its proper divisors (2661565).

635134222403 is a wasteful number, since it uses less digits than its factorization.

635134222403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2661564.

The product of its (nonzero) digits is 103680, while the sum is 35.

Adding to 635134222403 its reverse (304222431536), we get a palindrome (939356653939).

The spelling of 635134222403 in words is "six hundred thirty-five billion, one hundred thirty-four million, two hundred twenty-two thousand, four hundred three".