142262025731 has 4 divisors (see below), whose sum is σ = 162585172272. Its totient is φ = 121938879192.

The previous prime is 142262025709. The next prime is 142262025757. The reversal of 142262025731 is 137520262241.

142262025731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142262025731 is a prime.

It is a super-2 number, since 2×142262025731² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142262025691 and 142262025700.

It is not an unprimeable number, because it can be changed into a prime (142262025761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10161573260 + ... + 10161573273.

It is an arithmetic number, because the mean of its divisors is an integer number (40646293068).

Almost surely, 2^142262025731 is an apocalyptic number.

142262025731 is a deficient number, since it is larger than the sum of its proper divisors (20323146541).

142262025731 is an equidigital number, since it uses as much as digits as its factorization.

142262025731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20323146540.

The product of its (nonzero) digits is 40320, while the sum is 35.

Adding to 142262025731 its reverse (137520262241), we get a palindrome (279782287972).

The spelling of 142262025731 in words is "one hundred forty-two billion, two hundred sixty-two million, twenty-five thousand, seven hundred thirty-one".