139716077 has 2 divisors, whose sum is σ = 139716078. Its totient is φ = 139716076.

The previous prime is 139716043. The next prime is 139716089. The reversal of 139716077 is 770617931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133310116 + 6405961 = 11546^2 + 2531^2 .

It is an emirp because it is prime and its reverse (770617931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 139716077 - 2¹⁰ = 139715053 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139716097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69858038 + 69858039.

It is an arithmetic number, because the mean of its divisors is an integer number (69858039).

Almost surely, 2^139716077 is an apocalyptic number.

It is an amenable number.

139716077 is a deficient number, since it is larger than the sum of its proper divisors (1).

139716077 is an equidigital number, since it uses as much as digits as its factorization.

139716077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55566, while the sum is 41.

The square root of 139716077 is about 11820.1555404318. The cubic root of 139716077 is about 518.8981563177.

The spelling of 139716077 in words is "one hundred thirty-nine million, seven hundred sixteen thousand, seventy-seven".