1341405 has 24 divisors (see below), whose sum is σ = 2505048. Its totient is φ = 660096.

The previous prime is 1341371. The next prime is 1341409. The reversal of 1341405 is 5041431.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 441 + 1340964 = 21^2 + 1158^2 .

It is not a de Polignac number, because 1341405 - 2¹¹ = 1339357 is a prime.

1341405 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1341409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 562 + ... + 1731.

It is an arithmetic number, because the mean of its divisors is an integer number (104377).

2^1341405 is an apocalyptic number.

1341405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1341405 is a deficient number, since it is larger than the sum of its proper divisors (1163643).

1341405 is a wasteful number, since it uses less digits than its factorization.

1341405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2317 (or 2314 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1341405 is about 1158.1903988550. The cubic root of 1341405 is about 110.2858954184.

Adding to 1341405 its reverse (5041431), we get a palindrome (6382836).

The spelling of 1341405 in words is "one million, three hundred forty-one thousand, four hundred five".