1421135 has 4 divisors (see below), whose sum is σ = 1705368. Its totient is φ = 1136904.

The previous prime is 1421113. The next prime is 1421141. The reversal of 1421135 is 5311241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1421135 - 2⁸ = 1420879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142109 + ... + 142118.

It is an arithmetic number, because the mean of its divisors is an integer number (426342).

2^1421135 is an apocalyptic number.

1421135 is a deficient number, since it is larger than the sum of its proper divisors (284233).

1421135 is an equidigital number, since it uses as much as digits as its factorization.

1421135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284232.

The product of its digits is 120, while the sum is 17.

The square root of 1421135 is about 1192.1136690769. The cubic root of 1421135 is about 112.4290251912.

Adding to 1421135 its reverse (5311241), we get a palindrome (6732376).

The spelling of 1421135 in words is "one million, four hundred twenty-one thousand, one hundred thirty-five".