1055144 has 8 divisors (see below), whose sum is σ = 1978410. Its totient is φ = 527568.

The previous prime is 1055143. The next prime is 1055167. The reversal of 1055144 is 4415501.

It can be written as a sum of positive squares in only one way, i.e., 940900 + 114244 = 970^2 + 338^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1055144² = 2226657721472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1055141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65939 + ... + 65954.

2^1055144 is an apocalyptic number.

It is an amenable number.

1055144 is a deficient number, since it is larger than the sum of its proper divisors (923266).

1055144 is a wasteful number, since it uses less digits than its factorization.

1055144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131899 (or 131895 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 1055144 is about 1027.2020249201. The cubic root of 1055144 is about 101.8053445086.

The spelling of 1055144 in words is "one million, fifty-five thousand, one hundred forty-four".