1342909 has 2 divisors, whose sum is σ = 1342910. Its totient is φ = 1342908.

The previous prime is 1342907. The next prime is 1342963. The reversal of 1342909 is 9092431.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1265625 + 77284 = 1125^2 + 278^2 .

It is a cyclic number.

It is not a de Polignac number, because 1342909 - 2¹ = 1342907 is a prime.

Together with 1342907, it forms a pair of twin primes.

It is a Chen prime.

1342909 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1342907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671454 + 671455.

It is an arithmetic number, because the mean of its divisors is an integer number (671455).

2^1342909 is an apocalyptic number.

It is an amenable number.

1342909 is a deficient number, since it is larger than the sum of its proper divisors (1).

1342909 is an equidigital number, since it uses as much as digits as its factorization.

1342909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 1342909 is about 1158.8395057125. The cubic root of 1342909 is about 110.3270979967.

The spelling of 1342909 in words is "one million, three hundred forty-two thousand, nine hundred nine".