635125394 has 16 divisors (see below), whose sum is σ = 993244032. Its totient is φ = 304322928.

The previous prime is 635125391. The next prime is 635125399. The reversal of 635125394 is 493521536.

It is a super-2 number, since 2×635125394² = 806768532207310472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (635125391) 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 7 ways as a sum of consecutive naturals, for example, 65114 + ... + 74229.

It is an arithmetic number, because the mean of its divisors is an integer number (62077752).

Almost surely, 2^635125394 is an apocalyptic number.

635125394 is a deficient number, since it is larger than the sum of its proper divisors (358118638).

635125394 is a wasteful number, since it uses less digits than its factorization.

635125394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139441.

The product of its digits is 97200, while the sum is 38.

The square root of 635125394 is about 25201.6942684416. The cubic root of 635125394 is about 859.5803766801.

The spelling of 635125394 in words is "six hundred thirty-five million, one hundred twenty-five thousand, three hundred ninety-four".