2145224636 has 6 divisors (see below), whose sum is σ = 3754143120. Its totient is φ = 1072612316.

The previous prime is 2145224629. The next prime is 2145224639. The reversal of 2145224636 is 6364225412.

It is a junction number, because it is equal to n+sod(n) for n = 2145224596 and 2145224605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145224639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268153076 + ... + 268153083.

It is an arithmetic number, because the mean of its divisors is an integer number (625690520).

Almost surely, 2^2145224636 is an apocalyptic number.

It is an amenable number.

2145224636 is a deficient number, since it is larger than the sum of its proper divisors (1608918484).

2145224636 is a wasteful number, since it uses less digits than its factorization.

2145224636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536306163 (or 536306161 counting only the distinct ones).

The product of its digits is 69120, while the sum is 35.

The square root of 2145224636 is about 46316.5697779963. The cubic root of 2145224636 is about 1289.7066087578.

The spelling of 2145224636 in words is "two billion, one hundred forty-five million, two hundred twenty-four thousand, six hundred thirty-six".