142202225 has 36 divisors (see below), whose sum is σ = 200625180. Its totient is φ = 99792000.

The previous prime is 142202209. The next prime is 142202231. The reversal of 142202225 is 522202241.

It can be written as a sum of positive squares in 6 ways, for example, as 20449 + 142181776 = 143^2 + 11924^2 .

It is not a de Polignac number, because 142202225 - 2⁴ = 142202209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142202197 and 142202206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 86915 + ... + 88535.

Almost surely, 2^142202225 is an apocalyptic number.

It is an amenable number.

142202225 is a deficient number, since it is larger than the sum of its proper divisors (58422955).

142202225 is a wasteful number, since it uses less digits than its factorization.

142202225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1682 (or 1666 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 142202225 is about 11924.8574414959. The cubic root of 142202225 is about 521.9578864847.

Adding to 142202225 its reverse (522202241), we get a palindrome (664404466).

The spelling of 142202225 in words is "one hundred forty-two million, two hundred two thousand, two hundred twenty-five".