1421313 has 8 divisors (see below), whose sum is σ = 1901568. Its totient is φ = 944304.

The previous prime is 1421309. The next prime is 1421317. The reversal of 1421313 is 3131241.

It is an interprime number because it is at equal distance from previous prime (1421309) and next prime (1421317).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1421313 - 2² = 1421309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1421292 and 1421301.

It is not an unprimeable number, because it can be changed into a prime (1421317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 531 + ... + 1767.

It is an arithmetic number, because the mean of its divisors is an integer number (237696).

It is a Proth number, since it is equal to 347 ⋅ 2¹² + 1 and 347 < 2¹².

2^1421313 is an apocalyptic number.

It is an amenable number.

1421313 is a deficient number, since it is larger than the sum of its proper divisors (480255).

1421313 is a wasteful number, since it uses less digits than its factorization.

1421313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1623.

The product of its digits is 72, while the sum is 15.

The square root of 1421313 is about 1192.1883240495. The cubic root of 1421313 is about 112.4337189819.

Subtracting from 1421313 its product of digits (72), we obtain a palindrome (1421241).

Adding to 1421313 its reverse (3131241), we get a palindrome (4552554).

The spelling of 1421313 in words is "one million, four hundred twenty-one thousand, three hundred thirteen".