139011349 has 2 divisors, whose sum is σ = 139011350. Its totient is φ = 139011348.

The previous prime is 139011343. The next prime is 139011359. The reversal of 139011349 is 943110931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122810724 + 16200625 = 11082^2 + 4025^2 .

It is a cyclic number.

It is not a de Polignac number, because 139011349 - 2⁵ = 139011317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 139011349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139011343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69505674 + 69505675.

It is an arithmetic number, because the mean of its divisors is an integer number (69505675).

Almost surely, 2^139011349 is an apocalyptic number.

It is an amenable number.

139011349 is a deficient number, since it is larger than the sum of its proper divisors (1).

139011349 is an equidigital number, since it uses as much as digits as its factorization.

139011349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 139011349 is about 11790.3074175358. The cubic root of 139011349 is about 518.0242444291.

The spelling of 139011349 in words is "one hundred thirty-nine million, eleven thousand, three hundred forty-nine".