1105522155 has 128 divisors (see below), whose sum is σ = 2206310400. Its totient is φ = 522547200.

The previous prime is 1105522151. The next prime is 1105522157. The reversal of 1105522155 is 5512255011.

It is not a de Polignac number, because 1105522155 - 2² = 1105522151 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1105522151) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2916756 + ... + 2917134.

It is an arithmetic number, because the mean of its divisors is an integer number (17236800).

Almost surely, 2^1105522155 is an apocalyptic number.

1105522155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1105522155 is a deficient number, since it is larger than the sum of its proper divisors (1100788245).

1105522155 is a wasteful number, since it uses less digits than its factorization.

1105522155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482 (or 476 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 27.

The square root of 1105522155 is about 33249.3933027356. The cubic root of 1105522155 is about 1034.0046301112.

Adding to 1105522155 its reverse (5512255011), we get a palindrome (6617777166).

The spelling of 1105522155 in words is "one billion, one hundred five million, five hundred twenty-two thousand, one hundred fifty-five".