120278143 has 4 divisors (see below), whose sum is σ = 120392568. Its totient is φ = 120163720.

The previous prime is 120278129. The next prime is 120278149. The reversal of 120278143 is 341872021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341872021 = 17189 ⋅19889.

It is a cyclic number.

It is not a de Polignac number, because 120278143 - 2²⁵ = 86723711 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 (120278149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55621 + ... + 57742.

It is an arithmetic number, because the mean of its divisors is an integer number (30098142).

Almost surely, 2^120278143 is an apocalyptic number.

120278143 is a deficient number, since it is larger than the sum of its proper divisors (114425).

120278143 is a wasteful number, since it uses less digits than its factorization.

120278143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114424.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 120278143 is about 10967.1392350056. The cubic root of 120278143 is about 493.6232094887.

The spelling of 120278143 in words is "one hundred twenty million, two hundred seventy-eight thousand, one hundred forty-three".