203135164 has 12 divisors (see below), whose sum is σ = 357668584. Its totient is φ = 100944144.

The previous prime is 203135147. The next prime is 203135173. The reversal of 203135164 is 461531302.

203135164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155127 + ... + 156430.

Almost surely, 2^203135164 is an apocalyptic number.

It is an amenable number.

203135164 is a deficient number, since it is larger than the sum of its proper divisors (154533420).

203135164 is a wasteful number, since it uses less digits than its factorization.

203135164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311724 (or 311722 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 203135164 is about 14252.5493859871. The cubic root of 203135164 is about 587.8434764706.

Adding to 203135164 its reverse (461531302), we get a palindrome (664666466).

The spelling of 203135164 in words is "two hundred three million, one hundred thirty-five thousand, one hundred sixty-four".