1261341 has 12 divisors (see below), whose sum is σ = 1832220. Its totient is φ = 836160.

The previous prime is 1261333. The next prime is 1261357. The reversal of 1261341 is 1431621.

It is a happy number.

1261341 is a `hidden beast` number, since 12 + 613 + 41 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 202500 + 1058841 = 450^2 + 1029^2 .

It is not a de Polignac number, because 1261341 - 2³ = 1261333 is a prime.

It is a super-2 number, since 2×1261341² = 3181962236562, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1261301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2161 + ... + 2681.

It is an arithmetic number, because the mean of its divisors is an integer number (152685).

2^1261341 is an apocalyptic number.

It is an amenable number.

1261341 is a deficient number, since it is larger than the sum of its proper divisors (570879).

1261341 is a wasteful number, since it uses less digits than its factorization.

1261341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796 (or 793 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 1261341 is about 1123.0943860602. The cubic root of 1261341 is about 108.0465334454.

Adding to 1261341 its reverse (1431621), we get a palindrome (2692962).

The spelling of 1261341 in words is "one million, two hundred sixty-one thousand, three hundred forty-one".