1421033 has 4 divisors (see below), whose sum is σ = 1434180. Its totient is φ = 1407888.
The previous prime is 1421027. The next prime is 1421039. The reversal of 1421033 is 3301241.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3301241 = 821 ⋅4021.
It is an interprime number because it is at equal distance from previous prime (1421027) and next prime (1421039).
It can be written as a sum of positive squares in 2 ways, for example, as 976144 + 444889 = 988^2 + 667^2 .
It is a cyclic number.
It is not a de Polignac number, because 1421033 - 28 = 1420777 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 1420999 and 1421017.
It is not an unprimeable number, because it can be changed into a prime (1421039) 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 3 ways as a sum of consecutive naturals, for example, 6410 + ... + 6627.
It is an arithmetic number, because the mean of its divisors is an integer number (358545).
21421033 is an apocalyptic number.
It is an amenable number.
1421033 is a deficient number, since it is larger than the sum of its proper divisors (13147).
1421033 is a wasteful number, since it uses less digits than its factorization.
1421033 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13146.
The product of its (nonzero) digits is 72, while the sum is 14.
The square root of 1421033 is about 1192.0708871539. The cubic root of 1421033 is about 112.4263353142.
Adding to 1421033 its reverse (3301241), we get a palindrome (4722274).
The spelling of 1421033 in words is "one million, four hundred twenty-one thousand, thirty-three".
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