142003225 has 72 divisors (see below), whose sum is σ = 227490648. Its totient is φ = 87091200.

The previous prime is 142003223. The next prime is 142003229. The reversal of 142003225 is 522300241.

It can be written as a sum of positive squares in 12 ways, for example, as 18593344 + 123409881 = 4312^2 + 11109^2 .

It is not a de Polignac number, because 142003225 - 2¹ = 142003223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142003223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 589105 + ... + 589345.

Almost surely, 2^142003225 is an apocalyptic number.

142003225 is the 6370-th nonagonal number.

It is an amenable number.

142003225 is a deficient number, since it is larger than the sum of its proper divisors (85487423).

142003225 is a wasteful number, since it uses less digits than its factorization.

142003225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315 (or 303 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 142003225 is about 11916.5106050387. The cubic root of 142003225 is about 521.7142941655.

Adding to 142003225 its reverse (522300241), we get a palindrome (664303466).

The spelling of 142003225 in words is "one hundred forty-two million, three thousand, two hundred twenty-five".