1345673 has 4 divisors (see below), whose sum is σ = 1537920. Its totient is φ = 1153428.

The previous prime is 1345667. The next prime is 1345691. The reversal of 1345673 is 3765431.

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.

It is a cyclic number.

It is not a de Polignac number, because 1345673 - 2¹² = 1341577 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1345633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96113 + ... + 96126.

It is an arithmetic number, because the mean of its divisors is an integer number (384480).

2^1345673 is an apocalyptic number.

It is an amenable number.

1345673 is a deficient number, since it is larger than the sum of its proper divisors (192247).

1345673 is an equidigital number, since it uses as much as digits as its factorization.

1345673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192246.

The product of its digits is 7560, while the sum is 29.

The square root of 1345673 is about 1160.0314650905. The cubic root of 1345673 is about 110.4027385462.

It can be divided in two parts, 1345 and 673, that multiplied together give a triangular number (905185 = T₁₃₄₅).

The spelling of 1345673 in words is "one million, three hundred forty-five thousand, six hundred seventy-three".