1343745 has 24 divisors (see below), whose sum is σ = 2509416. Its totient is φ = 661248.

The previous prime is 1343743. The next prime is 1343747. The reversal of 1343745 is 5473431.

It is an interprime number because it is at equal distance from previous prime (1343743) and next prime (1343747).

It can be written as a sum of positive squares in 4 ways, for example, as 16641 + 1327104 = 129^2 + 1152^2 .

It is not a de Polignac number, because 1343745 - 2¹ = 1343743 is a prime.

It is a d-powerful number, because it can be written as 1 + 3⁵ + 4 + 3¹¹ + 7⁶ + 4¹⁰ + 5³ .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1343743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 564 + ... + 1733.

It is an arithmetic number, because the mean of its divisors is an integer number (104559).

2^1343745 is an apocalyptic number.

1343745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1343745 is a deficient number, since it is larger than the sum of its proper divisors (1165671).

1343745 is a wasteful number, since it uses less digits than its factorization.

1343745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2321 (or 2318 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 1343745 is about 1159.2001552795. The cubic root of 1343745 is about 110.3499871925.

The spelling of 1343745 in words is "one million, three hundred forty-three thousand, seven hundred forty-five".