1421055 has 24 divisors (see below), whose sum is σ = 2572128. Its totient is φ = 724416.

The previous prime is 1421041. The next prime is 1421083. The reversal of 1421055 is 5501241.

It is not a de Polignac number, because 1421055 - 2⁴ = 1421039 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 349 + ... + 1721.

It is an arithmetic number, because the mean of its divisors is an integer number (107172).

2^1421055 is an apocalyptic number.

1421055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1421055 is a deficient number, since it is larger than the sum of its proper divisors (1151073).

1421055 is a wasteful number, since it uses less digits than its factorization.

1421055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407 (or 1404 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 1421055 is about 1192.0801147574. The cubic root of 1421055 is about 112.4269154946.

Adding to 1421055 its reverse (5501241), we get a palindrome (6922296).

The spelling of 1421055 in words is "one million, four hundred twenty-one thousand, fifty-five".