1385155 has 8 divisors (see below), whose sum is σ = 1693872. Its totient is φ = 1087008.

The previous prime is 1385149. The next prime is 1385171. The reversal of 1385155 is 5515831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1385155 - 2³ = 1385147 is a prime.

It is a Duffinian number.

1385155 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2349 + ... + 2878.

It is an arithmetic number, because the mean of its divisors is an integer number (211734).

2^1385155 is an apocalyptic number.

1385155 is a deficient number, since it is larger than the sum of its proper divisors (308717).

1385155 is an equidigital number, since it uses as much as digits as its factorization.

1385155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5285.

The product of its digits is 3000, while the sum is 28.

The square root of 1385155 is about 1176.9260809414. The cubic root of 1385155 is about 111.4720850842.

It can be divided in two parts, 1385 and 155, that added together give a triangular number (1540 = T₅₅).

The spelling of 1385155 in words is "one million, three hundred eighty-five thousand, one hundred fifty-five".