1105545 has 16 divisors (see below), whose sum is σ = 2021760. Its totient is φ = 505344.

The previous prime is 1105537. The next prime is 1105547. The reversal of 1105545 is 5455011.

It is not a de Polignac number, because 1105545 - 2³ = 1105537 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (1105547) 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, 5160 + ... + 5369.

It is an arithmetic number, because the mean of its divisors is an integer number (126360).

2^1105545 is an apocalyptic number.

1105545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1105545 is a deficient number, since it is larger than the sum of its proper divisors (916215).

1105545 is a wasteful number, since it uses less digits than its factorization.

1105545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10544.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 1105545 is about 1051.4490001897. The cubic root of 1105545 is about 103.4011752439.

The spelling of 1105545 in words is "one million, one hundred five thousand, five hundred forty-five".