1421541 has 24 divisors (see below), whose sum is σ = 2280096. Its totient is φ = 846240.

The previous prime is 1421527. The next prime is 1421543. The reversal of 1421541 is 1451241.

It is not a de Polignac number, because 1421541 - 2¹¹ = 1419493 is a prime.

1421541 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421543) 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 23 ways as a sum of consecutive naturals, for example, 8131 + ... + 8303.

It is an arithmetic number, because the mean of its divisors is an integer number (95004).

2^1421541 is an apocalyptic number.

1421541 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1421541 is a deficient number, since it is larger than the sum of its proper divisors (858555).

1421541 is a wasteful number, since it uses less digits than its factorization.

1421541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273 (or 270 counting only the distinct ones).

The product of its digits is 160, while the sum is 18.

The square root of 1421541 is about 1192.2839426915. The cubic root of 1421541 is about 112.4397306808.

Adding to 1421541 its reverse (1451241), we get a palindrome (2872782).

The spelling of 1421541 in words is "one million, four hundred twenty-one thousand, five hundred forty-one".