3923143225 has 9 divisors (see below), whose sum is σ = 4865085967. Its totient is φ = 3138264040.

The previous prime is 3923143223. The next prime is 3923143249. The reversal of 3923143225 is 5223413293.

The square root of 3923143225 is 62635.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1412331561 + 2510811664 = 37581^2 + 50108^2 .

It is not a de Polignac number, because 3923143225 - 2¹ = 3923143223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3923143223) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 306912 + ... + 319438.

Almost surely, 2^3923143225 is an apocalyptic number.

3923143225 is the 62635-th square number.

3923143225 is the 31318-th centered octagonal number.

It is an amenable number.

3923143225 is a deficient number, since it is larger than the sum of its proper divisors (941942742).

3923143225 is an frugal number, since it uses more digits than its factorization.

3923143225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25064 (or 12532 counting only the distinct ones).

The product of its digits is 38880, while the sum is 34.

The cubic root of 3923143225 is about 1577.1683546123.

The spelling of 3923143225 in words is "three billion, nine hundred twenty-three million, one hundred forty-three thousand, two hundred twenty-five".