142231886501 has 4 divisors (see below), whose sum is σ = 146820011904. Its totient is φ = 137643761100.

The previous prime is 142231886483. The next prime is 142231886507. The reversal of 142231886501 is 105688132241.

142231886501 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, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 105688132241 = 2099 ⋅50351659.

It is a cyclic number.

It is not a de Polignac number, because 142231886501 - 2¹⁸ = 142231624357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142231886507) 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, 2294062655 + ... + 2294062716.

It is an arithmetic number, because the mean of its divisors is an integer number (36705002976).

Almost surely, 2^142231886501 is an apocalyptic number.

It is an amenable number.

142231886501 is a deficient number, since it is larger than the sum of its proper divisors (4588125403).

142231886501 is an equidigital number, since it uses as much as digits as its factorization.

142231886501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4588125402.

The product of its (nonzero) digits is 92160, while the sum is 41.

The spelling of 142231886501 in words is "one hundred forty-two billion, two hundred thirty-one million, eight hundred eighty-six thousand, five hundred one".