942180139 has 2 divisors, whose sum is σ = 942180140. Its totient is φ = 942180138.

The previous prime is 942180097. The next prime is 942180143. The reversal of 942180139 is 931081249.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 942180139 - 2¹³ = 942171947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 942180098 and 942180107.

It is not a weakly prime, because it can be changed into another prime (942280139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 471090069 + 471090070.

It is an arithmetic number, because the mean of its divisors is an integer number (471090070).

Almost surely, 2^942180139 is an apocalyptic number.

942180139 is a deficient number, since it is larger than the sum of its proper divisors (1).

942180139 is an equidigital number, since it uses as much as digits as its factorization.

942180139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 942180139 is about 30694.9529890502. The cubic root of 942180139 is about 980.3428409664.

The spelling of 942180139 in words is "nine hundred forty-two million, one hundred eighty thousand, one hundred thirty-nine".