1545138 has 24 divisors (see below), whose sum is σ = 3826368. Its totient is φ = 441432.

The previous prime is 1545127. The next prime is 1545139. The reversal of 1545138 is 8315451.

It is not an unprimeable number, because it can be changed into a prime (1545139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6006 + ... + 6257.

It is an arithmetic number, because the mean of its divisors is an integer number (159432).

2^1545138 is an apocalyptic number.

1545138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1545138 is an abundant number, since it is smaller than the sum of its proper divisors (2281230).

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

1545138 is a wasteful number, since it uses less digits than its factorization.

1545138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12278 (or 12275 counting only the distinct ones).

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

The square root of 1545138 is about 1243.0357999672. The cubic root of 1545138 is about 115.6083202626.

The spelling of 1545138 in words is "one million, five hundred forty-five thousand, one hundred thirty-eight".