1385655 has 8 divisors (see below), whose sum is σ = 2217072. Its totient is φ = 739008.

The previous prime is 1385647. The next prime is 1385693. The reversal of 1385655 is 5565831.

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

It is not a de Polignac number, because 1385655 - 2³ = 1385647 is a prime.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 46174 + ... + 46203.

It is an arithmetic number, because the mean of its divisors is an integer number (277134).

2^1385655 is an apocalyptic number.

1385655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1385655 is a deficient number, since it is larger than the sum of its proper divisors (831417).

1385655 is an equidigital number, since it uses as much as digits as its factorization.

1385655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92385.

The product of its digits is 18000, while the sum is 33.

The square root of 1385655 is about 1177.1384795342. The cubic root of 1385655 is about 111.4854961796.

The spelling of 1385655 in words is "one million, three hundred eighty-five thousand, six hundred fifty-five".