1538343 has 6 divisors (see below), whose sum is σ = 2222064. Its totient is φ = 1025556.

The previous prime is 1538321. The next prime is 1538353. The reversal of 1538343 is 3438351.

It is a happy number.

It is not a de Polignac number, because 1538343 - 2⁵ = 1538311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1538353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 85455 + ... + 85472.

It is an arithmetic number, because the mean of its divisors is an integer number (370344).

2^1538343 is an apocalyptic number.

1538343 is a deficient number, since it is larger than the sum of its proper divisors (683721).

1538343 is a wasteful number, since it uses less digits than its factorization.

1538343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170933 (or 170930 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 1538343 is about 1240.2995605901. The cubic root of 1538343 is about 115.4386023260.

It can be divided in two parts, 1538 and 343, that added together give a palindrome (1881).

The spelling of 1538343 in words is "one million, five hundred thirty-eight thousand, three hundred forty-three".