142801027549 has 4 divisors (see below), whose sum is σ = 142872039520. Its totient is φ = 142730015580.

The previous prime is 142801027487. The next prime is 142801027559. The reversal of 142801027549 is 945720108241.

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: 945720108241 = 19 ⋅49774742539.

It is a cyclic number.

It is not a de Polignac number, because 142801027549 - 2⁹ = 142801027037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142801027559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35502969 + ... + 35506990.

It is an arithmetic number, because the mean of its divisors is an integer number (35718009880).

Almost surely, 2^142801027549 is an apocalyptic number.

It is an amenable number.

142801027549 is a deficient number, since it is larger than the sum of its proper divisors (71011971).

142801027549 is an equidigital number, since it uses as much as digits as its factorization.

142801027549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71011970.

The product of its (nonzero) digits is 161280, while the sum is 43.

The spelling of 142801027549 in words is "one hundred forty-two billion, eight hundred one million, twenty-seven thousand, five hundred forty-nine".