1141889 has 4 divisors (see below), whose sum is σ = 1305024. Its totient is φ = 978756.

The previous prime is 1141871. The next prime is 1141901. The reversal of 1141889 is 9881411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1141889 - 2⁸ = 1141633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1141849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81557 + ... + 81570.

It is an arithmetic number, because the mean of its divisors is an integer number (326256).

2^1141889 is an apocalyptic number.

It is an amenable number.

1141889 is a deficient number, since it is larger than the sum of its proper divisors (163135).

1141889 is an equidigital number, since it uses as much as digits as its factorization.

1141889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163134.

The product of its digits is 2304, while the sum is 32.

The square root of 1141889 is about 1068.5920643538. The cubic root of 1141889 is about 104.5220606188.

The spelling of 1141889 in words is "one million, one hundred forty-one thousand, eight hundred eighty-nine".