2145225412 has 24 divisors (see below), whose sum is σ = 4096723680. Its totient is φ = 974794560.

The previous prime is 2145225391. The next prime is 2145225421.

It is a happy number.

2145225412 is nontrivially palindromic in base 10.

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, 190639 + ... + 201577.

It is an arithmetic number, because the mean of its divisors is an integer number (170696820).

Almost surely, 2^2145225412 is an apocalyptic number.

2145225412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2145225412 is a deficient number, since it is larger than the sum of its proper divisors (1951498268).

2145225412 is a wasteful number, since it uses less digits than its factorization.

2145225412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15411 (or 15409 counting only the distinct ones).

The product of its digits is 6400, while the sum is 28.

The square root of 2145225412 is about 46316.5781551271. The cubic root of 2145225412 is about 1289.7067642679.

It can be divided in two parts, 21452 and 25412, that added together give a palindrome (46864).

The spelling of 2145225412 in words is "two billion, one hundred forty-five million, two hundred twenty-five thousand, four hundred twelve".