143042225 has 6 divisors (see below), whose sum is σ = 177372390. Its totient is φ = 114433760.

The previous prime is 143042213. The next prime is 143042227. The reversal of 143042225 is 522240341.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 51208336 + 91833889 = 7156^2 + 9583^2 .

It is not a de Polignac number, because 143042225 - 2⁶ = 143042161 is a prime.

It is a super-2 number, since 2×143042225² = 40922156265901250, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 143042225.

It is not an unprimeable number, because it can be changed into a prime (143042227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2860820 + ... + 2860869.

It is an arithmetic number, because the mean of its divisors is an integer number (29562065).

Almost surely, 2^143042225 is an apocalyptic number.

It is an amenable number.

143042225 is a deficient number, since it is larger than the sum of its proper divisors (34330165).

143042225 is an equidigital number, since it uses as much as digits as its factorization.

143042225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5721699 (or 5721694 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 143042225 is about 11960.0261287340. The cubic root of 143042225 is about 522.9836185303.

Adding to 143042225 its reverse (522240341), we get a palindrome (665282566).

The spelling of 143042225 in words is "one hundred forty-three million, forty-two thousand, two hundred twenty-five".