1241421 has 4 divisors (see below), whose sum is σ = 1655232. Its totient is φ = 827612.

The previous prime is 1241417. The next prime is 1241423.

1241421 is nontrivially palindromic in base 10.

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 a cyclic number.

It is not a de Polignac number, because 1241421 - 2² = 1241417 is a prime.

It is a super-2 number, since 2×1241421² = 3082252198482, which contains 22 as substring.

It is a D-number.

1241421 is a lucky number.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 1241421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1241423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206901 + ... + 206906.

It is an arithmetic number, because the mean of its divisors is an integer number (413808).

2^1241421 is an apocalyptic number.

It is an amenable number.

1241421 is a deficient number, since it is larger than the sum of its proper divisors (413811).

1241421 is an equidigital number, since it uses as much as digits as its factorization.

1241421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413810.

The product of its digits is 64, while the sum is 15.

The square root of 1241421 is about 1114.1907377106. The cubic root of 1241421 is about 107.4747299535.

The spelling of 1241421 in words is "one million, two hundred forty-one thousand, four hundred twenty-one".