1142255525 has 6 divisors (see below), whose sum is σ = 1416396882. Its totient is φ = 913804400.

The previous prime is 1142255501. The next prime is 1142255533. The reversal of 1142255525 is 5255522411.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 151831684 + 990423841 = 12322^2 + 31471^2 .

It is not a de Polignac number, because 1142255525 - 2⁸ = 1142255269 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1142255491 and 1142255500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22845086 + ... + 22845135.

It is an arithmetic number, because the mean of its divisors is an integer number (236066147).

Almost surely, 2^1142255525 is an apocalyptic number.

It is an amenable number.

1142255525 is a deficient number, since it is larger than the sum of its proper divisors (274141357).

1142255525 is an equidigital number, since it uses as much as digits as its factorization.

1142255525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45690231 (or 45690226 counting only the distinct ones).

The product of its digits is 20000, while the sum is 32.

The square root of 1142255525 is about 33797.2709697100. The cubic root of 1142255525 is about 1045.3324263098.

Adding to 1142255525 its reverse (5255522411), we get a palindrome (6397777936).

The spelling of 1142255525 in words is "one billion, one hundred forty-two million, two hundred fifty-five thousand, five hundred twenty-five".