139484441 has 2 divisors, whose sum is σ = 139484442. Its totient is φ = 139484440.

The previous prime is 139484431. The next prime is 139484447. The reversal of 139484441 is 144484931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 138744841 + 739600 = 11779^2 + 860^2 .

It is a cyclic number.

It is not a de Polignac number, because 139484441 - 2²² = 135290137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 139484395 and 139484404.

It is not a weakly prime, because it can be changed into another prime (139484447) 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, 69742220 + 69742221.

It is an arithmetic number, because the mean of its divisors is an integer number (69742221).

Almost surely, 2^139484441 is an apocalyptic number.

It is an amenable number.

139484441 is a deficient number, since it is larger than the sum of its proper divisors (1).

139484441 is an equidigital number, since it uses as much as digits as its factorization.

139484441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55296, while the sum is 38.

The square root of 139484441 is about 11810.3531276588. The cubic root of 139484441 is about 518.6112363931.

The spelling of 139484441 in words is "one hundred thirty-nine million, four hundred eighty-four thousand, four hundred forty-one".