142393825 has 24 divisors (see below), whose sum is σ = 205115840. Its totient is φ = 96033600.

The previous prime is 142393813. The next prime is 142393829. The reversal of 142393825 is 528393241.

It is not a de Polignac number, because 142393825 - 2¹⁵ = 142361057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142393829) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 4006 + ... + 17344.

Almost surely, 2^142393825 is an apocalyptic number.

It is an amenable number.

142393825 is a deficient number, since it is larger than the sum of its proper divisors (62722015).

142393825 is a wasteful number, since it uses less digits than its factorization.

142393825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13417 (or 13412 counting only the distinct ones).

The product of its digits is 51840, while the sum is 37.

The square root of 142393825 is about 11932.8883762482. Note that the first 3 decimals coincide. The cubic root of 142393825 is about 522.1922059521.

The spelling of 142393825 in words is "one hundred forty-two million, three hundred ninety-three thousand, eight hundred twenty-five".