635146142 has 4 divisors (see below), whose sum is σ = 952719216. Its totient is φ = 317573070.

The previous prime is 635146133. The next prime is 635146153. The reversal of 635146142 is 241641536.

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

It is a junction number, because it is equal to n+sod(n) for n = 635146099 and 635146108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158786534 + ... + 158786537.

It is an arithmetic number, because the mean of its divisors is an integer number (238179804).

Almost surely, 2^635146142 is an apocalyptic number.

635146142 is a deficient number, since it is larger than the sum of its proper divisors (317573074).

635146142 is a wasteful number, since it uses less digits than its factorization.

635146142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317573073.

The product of its digits is 17280, while the sum is 32.

The square root of 635146142 is about 25202.1059040708. The cubic root of 635146142 is about 859.5897367108.

Adding to 635146142 its reverse (241641536), we get a palindrome (876787678).

The spelling of 635146142 in words is "six hundred thirty-five million, one hundred forty-six thousand, one hundred forty-two".