201351138 has 16 divisors (see below), whose sum is σ = 415693056. Its totient is φ = 64951920.

The previous prime is 201351133. The next prime is 201351173. The reversal of 201351138 is 831153102.

201351138 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (201351133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 541081 + ... + 541452.

It is an arithmetic number, because the mean of its divisors is an integer number (25980816).

Almost surely, 2^201351138 is an apocalyptic number.

201351138 is an abundant number, since it is smaller than the sum of its proper divisors (214341918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201351138 is a wasteful number, since it uses less digits than its factorization.

201351138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082569.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 201351138 is about 14189.8251574852. The cubic root of 201351138 is about 586.1175103212.

The spelling of 201351138 in words is "two hundred one million, three hundred fifty-one thousand, one hundred thirty-eight".