1105421055 has 32 divisors (see below), whose sum is σ = 1847978496. Its totient is φ = 563190144.

The previous prime is 1105421047. The next prime is 1105421071. The reversal of 1105421055 is 5501245011.

It is not a de Polignac number, because 1105421055 - 2³ = 1105421047 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 347904 + ... + 351066.

It is an arithmetic number, because the mean of its divisors is an integer number (57749328).

Almost surely, 2^1105421055 is an apocalyptic number.

1105421055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1105421055 is a deficient number, since it is larger than the sum of its proper divisors (742557441).

1105421055 is a wasteful number, since it uses less digits than its factorization.

1105421055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4207.

The product of its (nonzero) digits is 1000, while the sum is 24.

The square root of 1105421055 is about 33247.8729394829. The cubic root of 1105421055 is about 1033.9731092428.

Adding to 1105421055 its reverse (5501245011), we get a palindrome (6606666066).

The spelling of 1105421055 in words is "one billion, one hundred five million, four hundred twenty-one thousand, fifty-five".