1365741 has 20 divisors (see below), whose sum is σ = 2198812. Its totient is φ = 839808.

The previous prime is 1365733. The next prime is 1365761. The reversal of 1365741 is 1475631.

1365741 is a `hidden beast` number, since 1 + 3 + 657 + 4 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 910116 + 455625 = 954^2 + 675^2 .

It is not a de Polignac number, because 1365741 - 2³ = 1365733 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1365731) 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 19 ways as a sum of consecutive naturals, for example, 405 + ... + 1701.

2^1365741 is an apocalyptic number.

It is an amenable number.

1365741 is a deficient number, since it is larger than the sum of its proper divisors (833071).

1365741 is a wasteful number, since it uses less digits than its factorization.

1365741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322 (or 1313 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 1365741 is about 1168.6492202539. The cubic root of 1365741 is about 110.9488442145.

The spelling of 1365741 in words is "one million, three hundred sixty-five thousand, seven hundred forty-one".