1299451 has 2 divisors, whose sum is σ = 1299452. Its totient is φ = 1299450.

The previous prime is 1299449. The next prime is 1299457. The reversal of 1299451 is 1549921.

It is a weak prime.

It is an emirp because it is prime and its reverse (1549921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1299451 - 2¹ = 1299449 is a prime.

Together with 1299449, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1299457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 649725 + 649726.

It is an arithmetic number, because the mean of its divisors is an integer number (649726).

2^1299451 is an apocalyptic number.

1299451 is a deficient number, since it is larger than the sum of its proper divisors (1).

1299451 is an equidigital number, since it uses as much as digits as its factorization.

1299451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 31.

The square root of 1299451 is about 1139.9346472496. The cubic root of 1299451 is about 109.1239226892.

The spelling of 1299451 in words is "one million, two hundred ninety-nine thousand, four hundred fifty-one".