1341997 has 4 divisors (see below), whose sum is σ = 1420956. Its totient is φ = 1263040.

The previous prime is 1341983. The next prime is 1342001. The reversal of 1341997 is 7991431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7991431 = 7 ⋅1141633.

It can be written as a sum of positive squares in 2 ways, for example, as 617796 + 724201 = 786^2 + 851^2 .

It is a cyclic number.

It is not a de Polignac number, because 1341997 - 2⁷ = 1341869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1341947) 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 in 3 ways as a sum of consecutive naturals, for example, 39454 + ... + 39487.

It is an arithmetic number, because the mean of its divisors is an integer number (355239).

2^1341997 is an apocalyptic number.

1341997 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1341997 is a deficient number, since it is larger than the sum of its proper divisors (78959).

1341997 is an equidigital number, since it uses as much as digits as its factorization.

1341997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78958.

The product of its digits is 6804, while the sum is 34.

The square root of 1341997 is about 1158.4459417685. The cubic root of 1341997 is about 110.3021171282.

The spelling of 1341997 in words is "one million, three hundred forty-one thousand, nine hundred ninety-seven".