1369855 has 4 divisors (see below), whose sum is σ = 1643832. Its totient is φ = 1095880.

The previous prime is 1369853. The next prime is 1369861. The reversal of 1369855 is 5589631.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1369855 - 2¹ = 1369853 is a prime.

It is a Duffinian number.

1369855 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1369853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136981 + ... + 136990.

It is an arithmetic number, because the mean of its divisors is an integer number (410958).

2^1369855 is an apocalyptic number.

1369855 is a deficient number, since it is larger than the sum of its proper divisors (273977).

1369855 is an equidigital number, since it uses as much as digits as its factorization.

1369855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273976.

The product of its digits is 32400, while the sum is 37.

The square root of 1369855 is about 1170.4080485027. The cubic root of 1369855 is about 111.0601356912.

The spelling of 1369855 in words is "one million, three hundred sixty-nine thousand, eight hundred fifty-five".