139282849 has 2 divisors, whose sum is σ = 139282850. Its totient is φ = 139282848.

The previous prime is 139282841. The next prime is 139282859. The reversal of 139282849 is 948282931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139240000 + 42849 = 11800^2 + 207^2 .

It is a cyclic number.

It is not a de Polignac number, because 139282849 - 2³ = 139282841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 139282799 and 139282808.

It is not a weakly prime, because it can be changed into another prime (139282841) 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, 69641424 + 69641425.

It is an arithmetic number, because the mean of its divisors is an integer number (69641425).

Almost surely, 2^139282849 is an apocalyptic number.

It is an amenable number.

139282849 is a deficient number, since it is larger than the sum of its proper divisors (1).

139282849 is an equidigital number, since it uses as much as digits as its factorization.

139282849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 46.

The square root of 139282849 is about 11801.8154959311. The cubic root of 139282849 is about 518.3612723527.

The spelling of 139282849 in words is "one hundred thirty-nine million, two hundred eighty-two thousand, eight hundred forty-nine".