1081277 has 2 divisors, whose sum is σ = 1081278. Its totient is φ = 1081276.

The previous prime is 1081247. The next prime is 1081279. The reversal of 1081277 is 7721801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 737881 + 343396 = 859^2 + 586^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1081277 is a prime.

Together with 1081279, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1081279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540638 + 540639.

It is an arithmetic number, because the mean of its divisors is an integer number (540639).

2^1081277 is an apocalyptic number.

It is an amenable number.

1081277 is a deficient number, since it is larger than the sum of its proper divisors (1).

1081277 is an equidigital number, since it uses as much as digits as its factorization.

1081277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 784, while the sum is 26.

The square root of 1081277 is about 1039.8446999432. The cubic root of 1081277 is about 102.6389786376.

The spelling of 1081277 in words is "one million, eighty-one thousand, two hundred seventy-seven".