1355799 has 4 divisors (see below), whose sum is σ = 1807736. Its totient is φ = 903864.

The previous prime is 1355777. The next prime is 1355803. The reversal of 1355799 is 9975531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9975531 = 3 ⋅3325177.

It is not a de Polignac number, because 1355799 - 2¹² = 1351703 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1355749) 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, 225964 + ... + 225969.

It is an arithmetic number, because the mean of its divisors is an integer number (451934).

2^1355799 is an apocalyptic number.

1355799 is a deficient number, since it is larger than the sum of its proper divisors (451937).

1355799 is an equidigital number, since it uses as much as digits as its factorization.

1355799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451936.

The product of its digits is 42525, while the sum is 39.

The square root of 1355799 is about 1164.3878219906. The cubic root of 1355799 is about 110.6789685281.

The spelling of 1355799 in words is "one million, three hundred fifty-five thousand, seven hundred ninety-nine".