142204025 has 12 divisors (see below), whose sum is σ = 176480892. Its totient is φ = 113667840.

The previous prime is 142204021. The next prime is 142204043. The reversal of 142204025 is 520402241.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 34480384 + 107723641 = 5872^2 + 10379^2 .

It is not a de Polignac number, because 142204025 - 2² = 142204021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142203988 and 142204006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142204021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58229 + ... + 60621.

It is an arithmetic number, because the mean of its divisors is an integer number (14706741).

Almost surely, 2^142204025 is an apocalyptic number.

It is an amenable number.

142204025 is a deficient number, since it is larger than the sum of its proper divisors (34276867).

142204025 is a wasteful number, since it uses less digits than its factorization.

142204025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4780 (or 4775 counting only the distinct ones).

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

The square root of 142204025 is about 11924.9329138574. The cubic root of 142204025 is about 521.9600887949.

Adding to 142204025 its reverse (520402241), we get a palindrome (662606266).

The spelling of 142204025 in words is "one hundred forty-two million, two hundred four thousand, twenty-five".