1265081 has 2 divisors, whose sum is σ = 1265082. Its totient is φ = 1265080.

The previous prime is 1265063. The next prime is 1265083. The reversal of 1265081 is 1805621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1092025 + 173056 = 1045^2 + 416^2 .

It is a cyclic number.

It is not a de Polignac number, because 1265081 - 2¹⁴ = 1248697 is a prime.

It is a super-2 number, since 2×1265081² = 3200859873122, which contains 22 as substring.

Together with 1265083, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1265083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632540 + 632541.

It is an arithmetic number, because the mean of its divisors is an integer number (632541).

2^1265081 is an apocalyptic number.

It is an amenable number.

1265081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1265081 is an equidigital number, since it uses as much as digits as its factorization.

1265081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 1265081 is about 1124.7581962360. The cubic root of 1265081 is about 108.1532176011.

The spelling of 1265081 in words is "one million, two hundred sixty-five thousand, eighty-one".