139241029 has 2 divisors, whose sum is σ = 139241030. Its totient is φ = 139241028.

The previous prime is 139241023. The next prime is 139241041. The reversal of 139241029 is 920142931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81450625 + 57790404 = 9025^2 + 7602^2 .

It is a cyclic number.

It is not a de Polignac number, because 139241029 - 2²⁷ = 5023301 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139241023) 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 as a sum of consecutive naturals, namely, 69620514 + 69620515.

It is an arithmetic number, because the mean of its divisors is an integer number (69620515).

Almost surely, 2^139241029 is an apocalyptic number.

It is an amenable number.

139241029 is a deficient number, since it is larger than the sum of its proper divisors (1).

139241029 is an equidigital number, since it uses as much as digits as its factorization.

139241029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 139241029 is about 11800.0436016144. The cubic root of 139241029 is about 518.3093874329.

The spelling of 139241029 in words is "one hundred thirty-nine million, two hundred forty-one thousand, twenty-nine".