142881395 has 4 divisors (see below), whose sum is σ = 171457680. Its totient is φ = 114305112.

The previous prime is 142881377. The next prime is 142881397. The reversal of 142881395 is 593188241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 593188241 = 373 ⋅1590317.

It is a cyclic number.

It is not a de Polignac number, because 142881395 - 2¹⁴ = 142865011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142881397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14288135 + ... + 14288144.

It is an arithmetic number, because the mean of its divisors is an integer number (42864420).

Almost surely, 2^142881395 is an apocalyptic number.

142881395 is a deficient number, since it is larger than the sum of its proper divisors (28576285).

142881395 is an equidigital number, since it uses as much as digits as its factorization.

142881395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28576284.

The product of its digits is 69120, while the sum is 41.

The square root of 142881395 is about 11953.3005902136. The cubic root of 142881395 is about 522.7875389025.

The spelling of 142881395 in words is "one hundred forty-two million, eight hundred eighty-one thousand, three hundred ninety-five".