142242025 has 12 divisors (see below), whose sum is σ = 178364700. Its totient is φ = 112513280.

The previous prime is 142242019. The next prime is 142242029. The reversal of 142242025 is 520242241.

142242025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 37650496 + 104591529 = 6136^2 + 10227^2 .

It is not a de Polignac number, because 142242025 - 2³ = 142242017 is a prime.

It is a super-2 number, since 2×142242025² = 40465587352201250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142241987 and 142242005.

It is not an unprimeable number, because it can be changed into a prime (142242029) 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, 29740 + ... + 34189.

It is an arithmetic number, because the mean of its divisors is an integer number (14863725).

Almost surely, 2^142242025 is an apocalyptic number.

It is an amenable number.

142242025 is a deficient number, since it is larger than the sum of its proper divisors (36122675).

142242025 is an equidigital number, since it uses as much as digits as its factorization.

142242025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64028 (or 64023 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 142242025 is about 11926.5261077985. The cubic root of 142242025 is about 522.0065776734.

Adding to 142242025 its reverse (520242241), we get a palindrome (662484266).

The spelling of 142242025 in words is "one hundred forty-two million, two hundred forty-two thousand, twenty-five".