1071121 has 2 divisors, whose sum is σ = 1071122. Its totient is φ = 1071120.

The previous prime is 1071067. The next prime is 1071131. The reversal of 1071121 is 1211701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 810000 + 261121 = 900^2 + 511^2 .

It is an emirp because it is prime and its reverse (1211701) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1071121 is a prime.

It is a super-2 number, since 2×1071121² = 2294600393282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1071131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 535560 + 535561.

It is an arithmetic number, because the mean of its divisors is an integer number (535561).

2^1071121 is an apocalyptic number.

It is an amenable number.

1071121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1071121 is an equidigital number, since it uses as much as digits as its factorization.

1071121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14, while the sum is 13.

The square root of 1071121 is about 1034.9497572346. The cubic root of 1071121 is about 102.3166183717.

Adding to 1071121 its reverse (1211701), we get a palindrome (2282822).

The spelling of 1071121 in words is "one million, seventy-one thousand, one hundred twenty-one".