1301421 has 16 divisors (see below), whose sum is σ = 1915200. Its totient is φ = 779520.

The previous prime is 1301413. The next prime is 1301423. The reversal of 1301421 is 1241031.

It is a happy number.

It is not a de Polignac number, because 1301421 - 2³ = 1301413 is a prime.

1301421 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1301397 and 1301406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3555 + ... + 3903.

It is an arithmetic number, because the mean of its divisors is an integer number (119700).

2^1301421 is an apocalyptic number.

1301421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1301421 is a deficient number, since it is larger than the sum of its proper divisors (613779).

1301421 is a wasteful number, since it uses less digits than its factorization.

1301421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1301421 is about 1140.7984046272. The cubic root of 1301421 is about 109.1790397050.

Adding to 1301421 its reverse (1241031), we get a palindrome (2542452).

It can be divided in two parts, 130 and 1421, that added together give a palindrome (1551).

The spelling of 1301421 in words is "one million, three hundred one thousand, four hundred twenty-one".