1421113 has 2 divisors, whose sum is σ = 1421114. Its totient is φ = 1421112.
The previous prime is 1421099. The next prime is 1421141. The reversal of 1421113 is 3111241.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 1075369 + 345744 = 1037^2 + 588^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-1421113 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 1421093 and 1421102.
It is not a weakly prime, because it can be changed into another prime (1421153) 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 as a sum of consecutive naturals, namely, 710556 + 710557.
It is an arithmetic number, because the mean of its divisors is an integer number (710557).
21421113 is an apocalyptic number.
It is an amenable number.
1421113 is a deficient number, since it is larger than the sum of its proper divisors (1).
1421113 is an equidigital number, since it uses as much as digits as its factorization.
1421113 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 24, while the sum is 13.
The square root of 1421113 is about 1192.1044417332. The cubic root of 1421113 is about 112.4284450325.
Adding to 1421113 its reverse (3111241), we get a palindrome (4532354).
The spelling of 1421113 in words is "one million, four hundred twenty-one thousand, one hundred thirteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.061 sec. • engine limits •