1421613 has 12 divisors (see below), whose sum is σ = 2066688. Its totient is φ = 941640.

The previous prime is 1421611. The next prime is 1421621. The reversal of 1421613 is 3161241.

It is a happy number.

It is not a de Polignac number, because 1421613 - 2¹ = 1421611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421611) 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 11 ways as a sum of consecutive naturals, for example, 1306 + ... + 2132.

It is an arithmetic number, because the mean of its divisors is an integer number (172224).

2^1421613 is an apocalyptic number.

It is an amenable number.

1421613 is a deficient number, since it is larger than the sum of its proper divisors (645075).

1421613 is a wasteful number, since it uses less digits than its factorization.

1421613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024 (or 1021 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 1421613 is about 1192.3141364590. The cubic root of 1421613 is about 112.4416289785.

Adding to 1421613 its reverse (3161241), we get a palindrome (4582854).

The spelling of 1421613 in words is "one million, four hundred twenty-one thousand, six hundred thirteen".