1380255 has 32 divisors (see below), whose sum is σ = 2419200. Its totient is φ = 669312.

The previous prime is 1380251. The next prime is 1380259. The reversal of 1380255 is 5520831.

It is an interprime number because it is at equal distance from previous prime (1380251) and next prime (1380259).

It is not a de Polignac number, because 1380255 - 2² = 1380251 is a prime.

1380255 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380251) 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 31 ways as a sum of consecutive naturals, for example, 8182 + ... + 8348.

It is an arithmetic number, because the mean of its divisors is an integer number (75600).

2^1380255 is an apocalyptic number.

1380255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1380255 is a deficient number, since it is larger than the sum of its proper divisors (1038945).

1380255 is a wasteful number, since it uses less digits than its factorization.

1380255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1380255 is about 1174.8425426414. The cubic root of 1380255 is about 111.3404852358.

The spelling of 1380255 in words is "one million, three hundred eighty thousand, two hundred fifty-five".