1297451 has 2 divisors, whose sum is σ = 1297452. Its totient is φ = 1297450.

The previous prime is 1297447. The next prime is 1297459. The reversal of 1297451 is 1547921.

It is a weak prime.

It is an emirp because it is prime and its reverse (1547921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1297451 - 2² = 1297447 is a prime.

It is not a weakly prime, because it can be changed into another prime (1297459) 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 as a sum of consecutive naturals, namely, 648725 + 648726.

It is an arithmetic number, because the mean of its divisors is an integer number (648726).

2^1297451 is an apocalyptic number.

1297451 is a deficient number, since it is larger than the sum of its proper divisors (1).

1297451 is an equidigital number, since it uses as much as digits as its factorization.

1297451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2520, while the sum is 29.

The square root of 1297451 is about 1139.0570661736. The cubic root of 1297451 is about 109.0679093137.

The spelling of 1297451 in words is "one million, two hundred ninety-seven thousand, four hundred fifty-one".