142031869625 has 8 divisors (see below), whose sum is σ = 177255773448. Its totient is φ = 113625495600.

The previous prime is 142031869613. The next prime is 142031869627. The reversal of 142031869625 is 526968130241.

It can be written as a sum of positive squares in 4 ways, for example, as 2086296976 + 139945572649 = 45676^2 + 374093^2 .

It is not a de Polignac number, because 142031869625 - 2⁶ = 142031869561 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142031869625.

It is not an unprimeable number, because it can be changed into a prime (142031869627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 568127354 + ... + 568127603.

It is an arithmetic number, because the mean of its divisors is an integer number (22156971681).

Almost surely, 2^142031869625 is an apocalyptic number.

It is an amenable number.

142031869625 is a deficient number, since it is larger than the sum of its proper divisors (35223903823).

142031869625 is an equidigital number, since it uses as much as digits as its factorization.

142031869625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136254972 (or 1136254962 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 47.

Adding to 142031869625 its reverse (526968130241), we get a palindrome (668999999866).

The spelling of 142031869625 in words is "one hundred forty-two billion, thirty-one million, eight hundred sixty-nine thousand, six hundred twenty-five".