1338155 has 32 divisors (see below), whose sum is σ = 2104704. Its totient is φ = 792576.

The previous prime is 1338109. The next prime is 1338167. The reversal of 1338155 is 5518331.

It is a cyclic number.

It is not a de Polignac number, because 1338155 - 2⁸ = 1337899 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 31 ways as a sum of consecutive naturals, for example, 7649 + ... + 7821.

It is an arithmetic number, because the mean of its divisors is an integer number (65772).

2^1338155 is an apocalyptic number.

1338155 is a deficient number, since it is larger than the sum of its proper divisors (766549).

1338155 is a wasteful number, since it uses less digits than its factorization.

1338155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215.

The product of its digits is 1800, while the sum is 26.

The square root of 1338155 is about 1156.7864971549. The cubic root of 1338155 is about 110.1967552950.

The spelling of 1338155 in words is "one million, three hundred thirty-eight thousand, one hundred fifty-five".