1538145 has 48 divisors (see below), whose sum is σ = 3219840. Its totient is φ = 663552.

The previous prime is 1538111. The next prime is 1538167. The reversal of 1538145 is 5418351.

It is not a de Polignac number, because 1538145 - 2⁶ = 1538081 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5857 + ... + 6113.

It is an arithmetic number, because the mean of its divisors is an integer number (67080).

2^1538145 is an apocalyptic number.

1538145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1538145 is an abundant number, since it is smaller than the sum of its proper divisors (1681695).

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

1538145 is a wasteful number, since it uses less digits than its factorization.

1538145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294 (or 291 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 1538145 is about 1240.2197385947. The cubic root of 1538145 is about 115.4336494159.

The spelling of 1538145 in words is "one million, five hundred thirty-eight thousand, one hundred forty-five".