1126381 has 2 divisors, whose sum is σ = 1126382. Its totient is φ = 1126380.

The previous prime is 1126361. The next prime is 1126387. The reversal of 1126381 is 1836211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1121481 + 4900 = 1059^2 + 70^2 .

It is a cyclic number.

It is not a de Polignac number, because 1126381 - 2⁷ = 1126253 is a prime.

It is a super-2 number, since 2×1126381² = 2537468314322, which contains 22 as substring.

1126381 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1126387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 563190 + 563191.

It is an arithmetic number, because the mean of its divisors is an integer number (563191).

2^1126381 is an apocalyptic number.

It is an amenable number.

1126381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1126381 is an equidigital number, since it uses as much as digits as its factorization.

1126381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 22.

The square root of 1126381 is about 1061.3109817579. The cubic root of 1126381 is about 104.0467307250.

The spelling of 1126381 in words is "one million, one hundred twenty-six thousand, three hundred eighty-one".