1345451 has 2 divisors, whose sum is σ = 1345452. Its totient is φ = 1345450.

The previous prime is 1345441. The next prime is 1345453. The reversal of 1345451 is 1545431.

It is a strong prime.

It is an emirp because it is prime and its reverse (1545431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1345451 - 2¹⁴ = 1329067 is a prime.

Together with 1345453, 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 (1345453) 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, 672725 + 672726.

It is an arithmetic number, because the mean of its divisors is an integer number (672726).

2^1345451 is an apocalyptic number.

1345451 is a deficient number, since it is larger than the sum of its proper divisors (1).

1345451 is an equidigital number, since it uses as much as digits as its factorization.

1345451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1200, while the sum is 23.

The square root of 1345451 is about 1159.9357740841. The cubic root of 1345451 is about 110.3966670474.

The spelling of 1345451 in words is "one million, three hundred forty-five thousand, four hundred fifty-one".