1305741 has 4 divisors (see below), whose sum is σ = 1740992. Its totient is φ = 870492.

The previous prime is 1305739. The next prime is 1305743. The reversal of 1305741 is 1475031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1475031 = 3 ⋅491677.

It is an interprime number because it is at equal distance from previous prime (1305739) and next prime (1305743).

It is not a de Polignac number, because 1305741 - 2¹ = 1305739 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1305743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217621 + ... + 217626.

It is an arithmetic number, because the mean of its divisors is an integer number (435248).

2^1305741 is an apocalyptic number.

It is an amenable number.

1305741 is a deficient number, since it is larger than the sum of its proper divisors (435251).

1305741 is an equidigital number, since it uses as much as digits as its factorization.

1305741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435250.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 1305741 is about 1142.6902467423. The cubic root of 1305741 is about 109.2997110162.

The spelling of 1305741 in words is "one million, three hundred five thousand, seven hundred forty-one".