1055189 has 2 divisors, whose sum is σ = 1055190. Its totient is φ = 1055188.

The previous prime is 1055167. The next prime is 1055191. The reversal of 1055189 is 9815501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1030225 + 24964 = 1015^2 + 158^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1055189 is a prime.

It is a super-2 number, since 2×1055189² = 2226847651442, which contains 22 as substring.

Together with 1055191, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1055489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527594 + 527595.

It is an arithmetic number, because the mean of its divisors is an integer number (527595).

2^1055189 is an apocalyptic number.

It is an amenable number.

1055189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1055189 is an equidigital number, since it uses as much as digits as its factorization.

1055189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 29.

The square root of 1055189 is about 1027.2239288490. The cubic root of 1055189 is about 101.8067917599.

The spelling of 1055189 in words is "one million, fifty-five thousand, one hundred eighty-nine".