139046071 has 2 divisors, whose sum is σ = 139046072. Its totient is φ = 139046070.

The previous prime is 139046053. The next prime is 139046087. The reversal of 139046071 is 170640931.

It is a happy number.

139046071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 139046071 - 2¹¹ = 139044023 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 (139046021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69523035 + 69523036.

It is an arithmetic number, because the mean of its divisors is an integer number (69523036).

Almost surely, 2^139046071 is an apocalyptic number.

139046071 is a deficient number, since it is larger than the sum of its proper divisors (1).

139046071 is an equidigital number, since it uses as much as digits as its factorization.

139046071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 139046071 is about 11791.7798062888. The cubic root of 139046071 is about 518.0673712207.

The spelling of 139046071 in words is "one hundred thirty-nine million, forty-six thousand, seventy-one".