1253335442 has 16 divisors (see below), whose sum is σ = 1895173632. Its totient is φ = 621631680.

The previous prime is 1253335409. The next prime is 1253335451. The reversal of 1253335442 is 2445333521.

It is a junction number, because it is equal to n+sod(n) for n = 1253335399 and 1253335408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121823 + ... + 131709.

It is an arithmetic number, because the mean of its divisors is an integer number (118448352).

Almost surely, 2^1253335442 is an apocalyptic number.

1253335442 is a deficient number, since it is larger than the sum of its proper divisors (641838190).

1253335442 is a wasteful number, since it uses less digits than its factorization.

1253335442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10393.

The product of its digits is 43200, while the sum is 32.

The square root of 1253335442 is about 35402.4779076267. The cubic root of 1253335442 is about 1078.1746263253.

Adding to 1253335442 its reverse (2445333521), we get a palindrome (3698668963).

The spelling of 1253335442 in words is "one billion, two hundred fifty-three million, three hundred thirty-five thousand, four hundred forty-two".