1340105 has 16 divisors (see below), whose sum is σ = 1769040. Its totient is φ = 968448.

The previous prime is 1340083. The next prime is 1340107. The reversal of 1340105 is 5010431.

It can be written as a sum of positive squares in 8 ways, for example, as 110224 + 1229881 = 332^2 + 1109^2 .

It is not a de Polignac number, because 1340105 - 2⁶ = 1340041 is a prime.

It is a super-2 number, since 2×1340105² = 3591762822050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1340105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3251 + ... + 3639.

It is an arithmetic number, because the mean of its divisors is an integer number (110565).

2^1340105 is an apocalyptic number.

It is an amenable number.

1340105 is a deficient number, since it is larger than the sum of its proper divisors (428935).

1340105 is a wasteful number, since it uses less digits than its factorization.

1340105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 1340105 is about 1157.6290424830. The cubic root of 1340105 is about 110.2502566654.

Adding to 1340105 its reverse (5010431), we get a palindrome (6350536).

The spelling of 1340105 in words is "one million, three hundred forty thousand, one hundred five".