1105550120 has 32 divisors (see below), whose sum is σ = 2633812200. Its totient is φ = 416206848.

The previous prime is 1105550101. The next prime is 1105550143. The reversal of 1105550120 is 210555011.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1078071556 + 27478564 = 32834^2 + 5242^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1105550092 and 1105550101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 812225 + ... + 813584.

Almost surely, 2^1105550120 is an apocalyptic number.

1105550120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1105550120 is an abundant number, since it is smaller than the sum of its proper divisors (1528262080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1105550120 is a wasteful number, since it uses less digits than its factorization.

1105550120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1625837 (or 1625833 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 20.

The square root of 1105550120 is about 33249.8138340653. The cubic root of 1105550120 is about 1034.0133486748.

The spelling of 1105550120 in words is "one billion, one hundred five million, five hundred fifty thousand, one hundred twenty".