1106820045 has 48 divisors (see below), whose sum is σ = 1993834752. Its totient is φ = 589032000.

The previous prime is 1106820019. The next prime is 1106820047. The reversal of 1106820045 is 5400286011.

It is not a de Polignac number, because 1106820045 - 2⁸ = 1106819789 is a prime.

It is a super-2 number, since 2×1106820045² = 2450101224027604050, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1106820047) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 911859 + ... + 913071.

It is an arithmetic number, because the mean of its divisors is an integer number (41538224).

Almost surely, 2^1106820045 is an apocalyptic number.

1106820045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1106820045 is a deficient number, since it is larger than the sum of its proper divisors (887014707).

1106820045 is an equidigital number, since it uses as much as digits as its factorization.

1106820045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1984 (or 1972 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 1106820045 is about 33268.9050766628. The cubic root of 1106820045 is about 1034.4091145212.

It can be divided in two parts, 11068 and 20045, that added together give a palindrome (31113).

The spelling of 1106820045 in words is "one billion, one hundred six million, eight hundred twenty thousand, forty-five".