1421585 has 8 divisors (see below), whose sum is σ = 1861056. Its totient is φ = 1033840.

The previous prime is 1421569. The next prime is 1421603. The reversal of 1421585 is 5851241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1421585 - 2⁴ = 1421569 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12869 + ... + 12978.

It is an arithmetic number, because the mean of its divisors is an integer number (232632).

2^1421585 is an apocalyptic number.

It is an amenable number.

1421585 is a deficient number, since it is larger than the sum of its proper divisors (439471).

1421585 is a wasteful number, since it uses less digits than its factorization.

1421585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25863.

The product of its digits is 1600, while the sum is 26.

The square root of 1421585 is about 1192.3023945292. The cubic root of 1421585 is about 112.4408907592.

The spelling of 1421585 in words is "one million, four hundred twenty-one thousand, five hundred eighty-five".