1346681 has 4 divisors (see below), whose sum is σ = 1539072. Its totient is φ = 1154292.

The previous prime is 1346669. The next prime is 1346693. The reversal of 1346681 is 1866431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1866431 = 7 ⋅266633.

It is an interprime number because it is at equal distance from previous prime (1346669) and next prime (1346693).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1346681 is a prime.

It is a super-2 number, since 2×1346681² = 3627099431522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1346641) 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, 96185 + ... + 96198.

It is an arithmetic number, because the mean of its divisors is an integer number (384768).

2^1346681 is an apocalyptic number.

It is an amenable number.

1346681 is a deficient number, since it is larger than the sum of its proper divisors (192391).

1346681 is an equidigital number, since it uses as much as digits as its factorization.

1346681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192390.

The product of its digits is 3456, while the sum is 29.

The square root of 1346681 is about 1160.4658547325. The cubic root of 1346681 is about 110.4302980362.

The spelling of 1346681 in words is "one million, three hundred forty-six thousand, six hundred eighty-one".