1155063 has 16 divisors (see below), whose sum is σ = 1895936. Its totient is φ = 609120.

The previous prime is 1155061. The next prime is 1155071. The reversal of 1155063 is 3605511.

It is a happy number.

It is not a de Polignac number, because 1155063 - 2¹ = 1155061 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1843 + ... + 2388.

It is an arithmetic number, because the mean of its divisors is an integer number (118496).

2^1155063 is an apocalyptic number.

1155063 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1155063 is a deficient number, since it is larger than the sum of its proper divisors (740873).

1155063 is a wasteful number, since it uses less digits than its factorization.

1155063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4254.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 1155063 is about 1074.7385728632. The cubic root of 1155063 is about 104.9224824684.

The spelling of 1155063 in words is "one million, one hundred fifty-five thousand, sixty-three".