1342609 has 4 divisors (see below), whose sum is σ = 1421604. Its totient is φ = 1263616.

The previous prime is 1342591. The next prime is 1342633. The reversal of 1342609 is 9062431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9062431 = 7 ⋅1294633.

It can be written as a sum of positive squares in 2 ways, for example, as 1254400 + 88209 = 1120^2 + 297^2 .

It is a cyclic number.

It is not a de Polignac number, because 1342609 - 2¹¹ = 1340561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1342669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39472 + ... + 39505.

It is an arithmetic number, because the mean of its divisors is an integer number (355401).

2^1342609 is an apocalyptic number.

It is an amenable number.

1342609 is a deficient number, since it is larger than the sum of its proper divisors (78995).

1342609 is an equidigital number, since it uses as much as digits as its factorization.

1342609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78994.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 1342609 is about 1158.7100586428. The cubic root of 1342609 is about 110.3188818544.

The spelling of 1342609 in words is "one million, three hundred forty-two thousand, six hundred nine".