139007149 has 2 divisors, whose sum is σ = 139007150. Its totient is φ = 139007148.

The previous prime is 139007123. The next prime is 139007171. The reversal of 139007149 is 941700931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105575625 + 33431524 = 10275^2 + 5782^2 .

It is a cyclic number.

It is not a de Polignac number, because 139007149 - 2⁵ = 139007117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139007849) 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, 69503574 + 69503575.

It is an arithmetic number, because the mean of its divisors is an integer number (69503575).

Almost surely, 2^139007149 is an apocalyptic number.

It is an amenable number.

139007149 is a deficient number, since it is larger than the sum of its proper divisors (1).

139007149 is an equidigital number, since it uses as much as digits as its factorization.

139007149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 139007149 is about 11790.1293037863. The cubic root of 139007149 is about 518.0190272921.

The spelling of 139007149 in words is "one hundred thirty-nine million, seven thousand, one hundred forty-nine".