1105378855 has 16 divisors (see below), whose sum is σ = 1551204864. Its totient is φ = 740345760.

The previous prime is 1105378847. The next prime is 1105378861. The reversal of 1105378855 is 5588735011.

It is a happy number.

It is not a de Polignac number, because 1105378855 - 2³ = 1105378847 is a prime.

It is a super-2 number, since 2×1105378855² = 2443724826162222050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

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, 365731 + ... + 368740.

It is an arithmetic number, because the mean of its divisors is an integer number (96950304).

Almost surely, 2^1105378855 is an apocalyptic number.

1105378855 is a deficient number, since it is larger than the sum of its proper divisors (445826009).

1105378855 is an equidigital number, since it uses as much as digits as its factorization.

1105378855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734526.

The product of its (nonzero) digits is 168000, while the sum is 43.

The square root of 1105378855 is about 33247.2383063616. The cubic root of 1105378855 is about 1033.9599515957.

The spelling of 1105378855 in words is "one billion, one hundred five million, three hundred seventy-eight thousand, eight hundred fifty-five".