1421085 has 16 divisors (see below), whose sum is σ = 2289600. Its totient is φ = 752640.

The previous prime is 1421083. The next prime is 1421093. The reversal of 1421085 is 5801241.

It is not a de Polignac number, because 1421085 - 2¹ = 1421083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421083) 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 15 ways as a sum of consecutive naturals, for example, 2941 + ... + 3389.

It is an arithmetic number, because the mean of its divisors is an integer number (143100).

2^1421085 is an apocalyptic number.

1421085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1421085 is a deficient number, since it is larger than the sum of its proper divisors (868515).

1421085 is a wasteful number, since it uses less digits than its factorization.

1421085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 1421085 is about 1192.0926977379. The cubic root of 1421085 is about 112.4277066401.

The spelling of 1421085 in words is "one million, four hundred twenty-one thousand, eighty-five".