2145004122 has 16 divisors (see below), whose sum is σ = 4360336992. Its totient is φ = 703279920.

The previous prime is 2145004091. The next prime is 2145004151. The reversal of 2145004122 is 2214005412.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2929968 + ... + 2930699.

It is an arithmetic number, because the mean of its divisors is an integer number (272521062).

Almost surely, 2^2145004122 is an apocalyptic number.

2145004122 is an abundant number, since it is smaller than the sum of its proper divisors (2215332870).

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

2145004122 is a wasteful number, since it uses less digits than its factorization.

2145004122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5860733.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 2145004122 is about 46314.1892080602. The cubic root of 2145004122 is about 1289.6624163217.

Adding to 2145004122 its reverse (2214005412), we get a palindrome (4359009534).

The spelling of 2145004122 in words is "two billion, one hundred forty-five million, four thousand, one hundred twenty-two".