1421146 has 4 divisors (see below), whose sum is σ = 2131722. Its totient is φ = 710572.

The previous prime is 1421141. The next prime is 1421153. The reversal of 1421146 is 6411241.

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

It can be written as a sum of positive squares in only one way, i.e., 1185921 + 235225 = 1089^2 + 485^2 .

It is a zygodrome in base 4.

It is not an unprimeable number, because it can be changed into a prime (1421141) 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, 355285 + ... + 355288.

2^1421146 is an apocalyptic number.

1421146 is a deficient number, since it is larger than the sum of its proper divisors (710576).

1421146 is an equidigital number, since it uses as much as digits as its factorization.

1421146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710575.

The product of its digits is 192, while the sum is 19.

The square root of 1421146 is about 1192.1182827220. The cubic root of 1421146 is about 112.4293152682.

Adding to 1421146 its reverse (6411241), we get a palindrome (7832387).

The spelling of 1421146 in words is "one million, four hundred twenty-one thousand, one hundred forty-six".