1421351 has 2 divisors, whose sum is σ = 1421352. Its totient is φ = 1421350.

The previous prime is 1421339. The next prime is 1421389. The reversal of 1421351 is 1531241.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1421351 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1424351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710675 + 710676.

It is an arithmetic number, because the mean of its divisors is an integer number (710676).

2^1421351 is an apocalyptic number.

1421351 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421351 is an equidigital number, since it uses as much as digits as its factorization.

1421351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120, while the sum is 17.

The square root of 1421351 is about 1192.2042610224. The cubic root of 1421351 is about 112.4347209764.

Adding to 1421351 its reverse (1531241), we get a palindrome (2952592).

The spelling of 1421351 in words is "one million, four hundred twenty-one thousand, three hundred fifty-one".