2145005412 has 24 divisors (see below), whose sum is σ = 5460014112. Its totient is φ = 650001600.

The previous prime is 2145005333. The next prime is 2145005417.

2145005412 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (2145005417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8124889 + ... + 8125152.

It is an arithmetic number, because the mean of its divisors is an integer number (227500588).

Almost surely, 2^2145005412 is an apocalyptic number.

2145005412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2145005412 is an abundant number, since it is smaller than the sum of its proper divisors (3315008700).

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

2145005412 is a wasteful number, since it uses less digits than its factorization.

2145005412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16250059 (or 16250057 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 2145005412 is about 46314.2031346757. The cubic root of 2145005412 is about 1289.6626748548.

It can be divided in two parts, 214500 and 5412, that added together give a palindrome (219912).

The spelling of 2145005412 in words is "two billion, one hundred forty-five million, five thousand, four hundred twelve".