2180429105 has 4 divisors (see below), whose sum is σ = 2616514932. Its totient is φ = 1744343280.

The previous prime is 2180429101. The next prime is 2180429131. The reversal of 2180429105 is 5019240812.

2180429105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 709476496 + 1470952609 = 26636^2 + 38353^2 .

It is not a de Polignac number, because 2180429105 - 2² = 2180429101 is a prime.

It is a super-2 number, since 2×2180429105² = 9508542163862202050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2180429101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218042906 + ... + 218042915.

It is an arithmetic number, because the mean of its divisors is an integer number (654128733).

Almost surely, 2^2180429105 is an apocalyptic number.

It is an amenable number.

2180429105 is a deficient number, since it is larger than the sum of its proper divisors (436085827).

2180429105 is an equidigital number, since it uses as much as digits as its factorization.

2180429105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436085826.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 2180429105 is about 46695.0651032847. The cubic root of 2180429105 is about 1296.7233269217.

Adding to 2180429105 its reverse (5019240812), we get a palindrome (7199669917).

The spelling of 2180429105 in words is "two billion, one hundred eighty million, four hundred twenty-nine thousand, one hundred five".