4145623144 has 32 divisors (see below), whose sum is σ = 8377112520. Its totient is φ = 1911960576.

The previous prime is 4145623127. The next prime is 4145623147. The reversal of 4145623144 is 4413265414.

It can be written as a sum of positive squares in 4 ways, for example, as 3583459044 + 562164100 = 59862^2 + 23710^2 .

It is not an unprimeable number, because it can be changed into a prime (4145623147) 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, 135124 + ... + 162940.

Almost surely, 2^4145623144 is an apocalyptic number.

It is an amenable number.

4145623144 is an abundant number, since it is smaller than the sum of its proper divisors (4231489376).

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

4145623144 is a wasteful number, since it uses less digits than its factorization.

4145623144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29269 (or 29265 counting only the distinct ones).

The product of its digits is 46080, while the sum is 34.

The square root of 4145623144 is about 64386.5136810497. The cubic root of 4145623144 is about 1606.4354279635.

Adding to 4145623144 its reverse (4413265414), we get a palindrome (8558888558).

The spelling of 4145623144 in words is "four billion, one hundred forty-five million, six hundred twenty-three thousand, one hundred forty-four".