1481421 has 4 divisors (see below), whose sum is σ = 1975232. Its totient is φ = 987612.

The previous prime is 1481413. The next prime is 1481477. The reversal of 1481421 is 1241841.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1481421 - 2³ = 1481413 is a prime.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1481021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 246901 + ... + 246906.

It is an arithmetic number, because the mean of its divisors is an integer number (493808).

2^1481421 is an apocalyptic number.

It is an amenable number.

1481421 is a deficient number, since it is larger than the sum of its proper divisors (493811).

1481421 is an equidigital number, since it uses as much as digits as its factorization.

1481421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493810.

The product of its digits is 256, while the sum is 21.

The square root of 1481421 is about 1217.1363933430. The cubic root of 1481421 is about 113.9968450958.

The spelling of 1481421 in words is "one million, four hundred eighty-one thousand, four hundred twenty-one".