1536138 has 16 divisors (see below), whose sum is σ = 3413760. Its totient is φ = 512028.

The previous prime is 1536133. The next prime is 1536149. The reversal of 1536138 is 8316351.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1536133) 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, 14170 + ... + 14277.

It is an arithmetic number, because the mean of its divisors is an integer number (213360).

2^1536138 is an apocalyptic number.

1536138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1536138 is an abundant number, since it is smaller than the sum of its proper divisors (1877622).

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

1536138 is a wasteful number, since it uses less digits than its factorization.

1536138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28458 (or 28452 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 1536138 is about 1239.4103436715. The cubic root of 1536138 is about 115.3834209107.

The spelling of 1536138 in words is "one million, five hundred thirty-six thousand, one hundred thirty-eight".