1102555 has 4 divisors (see below), whose sum is σ = 1323072. Its totient is φ = 882040.

The previous prime is 1102553. The next prime is 1102567. The reversal of 1102555 is 5552011.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1102555 - 2¹ = 1102553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1102553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110251 + ... + 110260.

It is an arithmetic number, because the mean of its divisors is an integer number (330768).

2^1102555 is an apocalyptic number.

1102555 is a deficient number, since it is larger than the sum of its proper divisors (220517).

1102555 is an equidigital number, since it uses as much as digits as its factorization.

1102555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220516.

The product of its (nonzero) digits is 250, while the sum is 19.

The square root of 1102555 is about 1050.0261901496. The cubic root of 1102555 is about 103.3078732511.

Adding to 1102555 its reverse (5552011), we get a palindrome (6654566).

The spelling of 1102555 in words is "one million, one hundred two thousand, five hundred fifty-five".