1355000 has 40 divisors (see below), whose sum is σ = 3186480. Its totient is φ = 540000.

The previous prime is 1354987. The next prime is 1355021. The reversal of 1355000 is 5531.

It is a tau number, because it is divible by the number of its divisors (40).

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 9 ways as a sum of consecutive naturals, for example, 4865 + ... + 5135.

It is an arithmetic number, because the mean of its divisors is an integer number (79662).

2^1355000 is an apocalyptic number.

1355000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1355000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1593240).

1355000 is an abundant number, since it is smaller than the sum of its proper divisors (1831480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1355000 is an equidigital number, since it uses as much as digits as its factorization.

1355000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297 (or 278 counting only the distinct ones).

The product of its (nonzero) digits is 75, while the sum is 14.

The square root of 1355000 is about 1164.0446726823. The cubic root of 1355000 is about 110.6572224647.

The spelling of 1355000 in words is "one million, three hundred fifty-five thousand".