1342661 has 2 divisors, whose sum is σ = 1342662. Its totient is φ = 1342660.

The previous prime is 1342657. The next prime is 1342667. The reversal of 1342661 is 1662431.

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., 1012036 + 330625 = 1006^2 + 575^2 .

It is a cyclic number.

It is not a de Polignac number, because 1342661 - 2² = 1342657 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1342667) 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, 671330 + 671331.

It is an arithmetic number, because the mean of its divisors is an integer number (671331).

2^1342661 is an apocalyptic number.

It is an amenable number.

1342661 is a deficient number, since it is larger than the sum of its proper divisors (1).

1342661 is an equidigital number, since it uses as much as digits as its factorization.

1342661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 23.

The square root of 1342661 is about 1158.7324971709. The cubic root of 1342661 is about 110.3203060734.

The spelling of 1342661 in words is "one million, three hundred forty-two thousand, six hundred sixty-one".