142227025 has 12 divisors (see below), whose sum is σ = 177025500. Its totient is φ = 113353280.

The previous prime is 142227017. The next prime is 142227031. The reversal of 142227025 is 520722241.

It can be written as a sum of positive squares in 6 ways, for example, as 50239744 + 91987281 = 7088^2 + 9591^2 .

It is not a de Polignac number, because 142227025 - 2³ = 142227017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 3850 + ... + 17299.

It is an arithmetic number, because the mean of its divisors is an integer number (14752125).

Almost surely, 2^142227025 is an apocalyptic number.

It is an amenable number.

142227025 is a deficient number, since it is larger than the sum of its proper divisors (34798475).

142227025 is a wasteful number, since it uses less digits than its factorization.

142227025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21428 (or 21423 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 142227025 is about 11925.8972408788. The cubic root of 142227025 is about 521.9882277895.

Adding to 142227025 its reverse (520722241), we get a palindrome (662949266).

The spelling of 142227025 in words is "one hundred forty-two million, two hundred twenty-seven thousand, twenty-five".