302142225 has 96 divisors (see below), whose sum is σ = 629673984. Its totient is φ = 124185600.

The previous prime is 302142187. The next prime is 302142227. The reversal of 302142225 is 522241203.

It is not a de Polignac number, because 302142225 - 2¹¹ = 302140177 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (302142227) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 652344 + ... + 652806.

It is an arithmetic number, because the mean of its divisors is an integer number (6559104).

Almost surely, 2^302142225 is an apocalyptic number.

302142225 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

302142225 is an abundant number, since it is smaller than the sum of its proper divisors (327531759).

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

302142225 is a wasteful number, since it uses less digits than its factorization.

302142225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607 (or 602 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 302142225 is about 17382.2387798580. The cubic root of 302142225 is about 671.0225901038.

Adding to 302142225 its reverse (522241203), we get a palindrome (824383428).

The spelling of 302142225 in words is "three hundred two million, one hundred forty-two thousand, two hundred twenty-five".