1141669 has 4 divisors (see below), whose sum is σ = 1208844. Its totient is φ = 1074496.

The previous prime is 1141667. The next prime is 1141717. The reversal of 1141669 is 9661411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9661411 = 2459 ⋅3929.

It can be written as a sum of positive squares in 2 ways, for example, as 396900 + 744769 = 630^2 + 863^2 .

It is a cyclic number.

It is not a de Polignac number, because 1141669 - 2¹ = 1141667 is a prime.

It is a super-2 number, since 2×1141669² = 2606816211122, which contains 22 as substring.

It is a Duffinian number.

1141669 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1141661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33562 + ... + 33595.

It is an arithmetic number, because the mean of its divisors is an integer number (302211).

2^1141669 is an apocalyptic number.

It is an amenable number.

1141669 is a deficient number, since it is larger than the sum of its proper divisors (67175).

1141669 is an equidigital number, since it uses as much as digits as its factorization.

1141669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67174.

The product of its digits is 1296, while the sum is 28.

The square root of 1141669 is about 1068.4891202067. The cubic root of 1141669 is about 104.5153476691.

The spelling of 1141669 in words is "one million, one hundred forty-one thousand, six hundred sixty-nine".