1065261 has 4 divisors (see below), whose sum is σ = 1420352. Its totient is φ = 710172.

The previous prime is 1065217. The next prime is 1065263. The reversal of 1065261 is 1625601.

It is a happy number.

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.

It is not a de Polignac number, because 1065261 - 2⁷ = 1065133 is a prime.

It is a super-2 number, since 2×1065261² = 2269561996242, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1065263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177541 + ... + 177546.

It is an arithmetic number, because the mean of its divisors is an integer number (355088).

2^1065261 is an apocalyptic number.

It is an amenable number.

1065261 is a deficient number, since it is larger than the sum of its proper divisors (355091).

1065261 is an equidigital number, since it uses as much as digits as its factorization.

1065261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355090.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1065261 is about 1032.1148191941. The cubic root of 1065261 is about 102.1296889381.

It can be divided in two parts, 1065 and 261, that added together give a triangular number (1326 = T₅₁).

The spelling of 1065261 in words is "one million, sixty-five thousand, two hundred sixty-one".