1100955 has 16 divisors (see below), whose sum is σ = 1854720. Its totient is φ = 556128.

The previous prime is 1100947. The next prime is 1100977. The reversal of 1100955 is 5590011.

It is a happy number.

It is not a de Polignac number, because 1100955 - 2³ = 1100947 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1647 + ... + 2216.

It is an arithmetic number, because the mean of its divisors is an integer number (115920).

2^1100955 is an apocalyptic number.

1100955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1100955 is a deficient number, since it is larger than the sum of its proper divisors (753765).

1100955 is a wasteful number, since it uses less digits than its factorization.

1100955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3890.

The product of its (nonzero) digits is 225, while the sum is 21.

The square root of 1100955 is about 1049.2640277833. The cubic root of 1100955 is about 103.2578764655.

Adding to 1100955 its reverse (5590011), we get a palindrome (6690966).

The spelling of 1100955 in words is "one million, one hundred thousand, nine hundred fifty-five".