139509341 has 2 divisors, whose sum is σ = 139509342. Its totient is φ = 139509340.

The previous prime is 139509323. The next prime is 139509389. The reversal of 139509341 is 143905931.

139509341 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138415225 + 1094116 = 11765^2 + 1046^2 .

It is a cyclic number.

It is not a de Polignac number, because 139509341 - 2¹⁴ = 139492957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139509841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69754670 + 69754671.

It is an arithmetic number, because the mean of its divisors is an integer number (69754671).

Almost surely, 2^139509341 is an apocalyptic number.

It is an amenable number.

139509341 is a deficient number, since it is larger than the sum of its proper divisors (1).

139509341 is an equidigital number, since it uses as much as digits as its factorization.

139509341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 139509341 is about 11811.4072404604. The cubic root of 139509341 is about 518.6420944380.

The spelling of 139509341 in words is "one hundred thirty-nine million, five hundred nine thousand, three hundred forty-one".