142078159 has 2 divisors, whose sum is σ = 142078160. Its totient is φ = 142078158.

The previous prime is 142078147. The next prime is 142078193. The reversal of 142078159 is 951870241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142078159 - 2¹⁹ = 141553871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142078759) 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 as a sum of consecutive naturals, namely, 71039079 + 71039080.

It is an arithmetic number, because the mean of its divisors is an integer number (71039080).

Almost surely, 2^142078159 is an apocalyptic number.

142078159 is a deficient number, since it is larger than the sum of its proper divisors (1).

142078159 is an equidigital number, since it uses as much as digits as its factorization.

142078159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 142078159 is about 11919.6543154573. The cubic root of 142078159 is about 521.8060462234.

It can be divided in two parts, 14207 and 8159, that added together give a triangular number (22366 = T₂₁₁).

The spelling of 142078159 in words is "one hundred forty-two million, seventy-eight thousand, one hundred fifty-nine".