203135542 has 4 divisors (see below), whose sum is σ = 304703316. Its totient is φ = 101567770.

The previous prime is 203135521. The next prime is 203135579. The reversal of 203135542 is 245531302.

203135542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50783884 + ... + 50783887.

It is an arithmetic number, because the mean of its divisors is an integer number (76175829).

Almost surely, 2^203135542 is an apocalyptic number.

203135542 is a deficient number, since it is larger than the sum of its proper divisors (101567774).

203135542 is a wasteful number, since it uses less digits than its factorization.

203135542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101567773.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 203135542 is about 14252.5626467664. The cubic root of 203135542 is about 587.8438410959.

Adding to 203135542 its reverse (245531302), we get a palindrome (448666844).

It can be divided in two parts, 2031 and 35542, that added together give a palindrome (37573).

The spelling of 203135542 in words is "two hundred three million, one hundred thirty-five thousand, five hundred forty-two".