1081361 has 2 divisors, whose sum is σ = 1081362. Its totient is φ = 1081360.

The previous prime is 1081351. The next prime is 1081369. The reversal of 1081361 is 1631801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 591361 + 490000 = 769^2 + 700^2 .

It is a cyclic number.

It is not a de Polignac number, because 1081361 - 2¹⁴ = 1064977 is a prime.

It is a super-2 number, since 2×1081361² = 2338683224642, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1081369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540680 + 540681.

It is an arithmetic number, because the mean of its divisors is an integer number (540681).

2^1081361 is an apocalyptic number.

It is an amenable number.

1081361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1081361 is an equidigital number, since it uses as much as digits as its factorization.

1081361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 1081361 is about 1039.8850898056. The cubic root of 1081361 is about 102.6416364367.

The spelling of 1081361 in words is "one million, eighty-one thousand, three hundred sixty-one".