1023055 has 24 divisors (see below), whose sum is σ = 1436400. Its totient is φ = 696960.

The previous prime is 1023047. The next prime is 1023067. The reversal of 1023055 is 5503201.

It is not a de Polignac number, because 1023055 - 2³ = 1023047 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11451 + ... + 11539.

It is an arithmetic number, because the mean of its divisors is an integer number (59850).

2^1023055 is an apocalyptic number.

1023055 is a deficient number, since it is larger than the sum of its proper divisors (413345).

1023055 is a wasteful number, since it uses less digits than its factorization.

1023055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 1023055 is about 1011.4618134166. The cubic root of 1023055 is about 100.7626685792.

Adding to 1023055 its reverse (5503201), we get a palindrome (6526256).

The spelling of 1023055 in words is "one million, twenty-three thousand, fifty-five".