1141569 has 24 divisors (see below), whose sum is σ = 1939392. Its totient is φ = 637920.

The previous prime is 1141541. The next prime is 1141571. The reversal of 1141569 is 9651411.

It is not a de Polignac number, because 1141569 - 2¹¹ = 1139521 is a prime.

It is a super-2 number, since 2×1141569² = 2606359563522, which contains 22 as substring.

It is a Curzon number.

1141569 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1141529) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 844 + ... + 1730.

It is an arithmetic number, because the mean of its divisors is an integer number (80808).

2^1141569 is an apocalyptic number.

It is an amenable number.

1141569 is a deficient number, since it is larger than the sum of its proper divisors (797823).

1141569 is a wasteful number, since it uses less digits than its factorization.

1141569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917 (or 914 counting only the distinct ones).

The product of its digits is 1080, while the sum is 27.

The square root of 1141569 is about 1068.4423241336. The cubic root of 1141569 is about 104.5122960433.

The spelling of 1141569 in words is "one million, one hundred forty-one thousand, five hundred sixty-nine".