1342547 has 2 divisors, whose sum is σ = 1342548. Its totient is φ = 1342546.

The previous prime is 1342531. The next prime is 1342567. The reversal of 1342547 is 7452431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1342547 - 2⁴ = 1342531 is a prime.

It is not a weakly prime, because it can be changed into another prime (1342567) 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, 671273 + 671274.

It is an arithmetic number, because the mean of its divisors is an integer number (671274).

2^1342547 is an apocalyptic number.

1342547 is a deficient number, since it is larger than the sum of its proper divisors (1).

1342547 is an equidigital number, since it uses as much as digits as its factorization.

1342547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 26.

The square root of 1342547 is about 1158.6833044452. The cubic root of 1342547 is about 110.3171836990.

Adding to 1342547 its reverse (7452431), we get a palindrome (8794978).

The spelling of 1342547 in words is "one million, three hundred forty-two thousand, five hundred forty-seven".