1538138 has 16 divisors (see below), whose sum is σ = 2655744. Its totient is φ = 654480.

The previous prime is 1538111. The next prime is 1538167. The reversal of 1538138 is 8318351.

It is a self number, because there is not a number n which added to its sum of digits gives 1538138.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2231 + ... + 2837.

It is an arithmetic number, because the mean of its divisors is an integer number (165984).

2^1538138 is an apocalyptic number.

1538138 is a deficient number, since it is larger than the sum of its proper divisors (1117606).

1538138 is a wasteful number, since it uses less digits than its factorization.

1538138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797.

The product of its digits is 2880, while the sum is 29.

The square root of 1538138 is about 1240.2169165110. The cubic root of 1538138 is about 115.4334743052.

The spelling of 1538138 in words is "one million, five hundred thirty-eight thousand, one hundred thirty-eight".