2105420132 has 6 divisors (see below), whose sum is σ = 3684485238. Its totient is φ = 1052710064.

The previous prime is 2105420117. The next prime is 2105420143. The reversal of 2105420132 is 2310245012.

It can be written as a sum of positive squares in only one way, i.e., 1064325376 + 1041094756 = 32624^2 + 32266^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263177513 + ... + 263177520.

It is an arithmetic number, because the mean of its divisors is an integer number (614080873).

Almost surely, 2^2105420132 is an apocalyptic number.

It is an amenable number.

2105420132 is a deficient number, since it is larger than the sum of its proper divisors (1579065106).

2105420132 is a wasteful number, since it uses less digits than its factorization.

2105420132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526355037 (or 526355035 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2105420132 is about 45884.8573278811. The cubic root of 2105420132 is about 1281.6799499286.

Adding to 2105420132 its reverse (2310245012), we get a palindrome (4415665144).

The spelling of 2105420132 in words is "two billion, one hundred five million, four hundred twenty thousand, one hundred thirty-two".