139005701 has 2 divisors, whose sum is σ = 139005702. Its totient is φ = 139005700.

The previous prime is 139005683. The next prime is 139005731. The reversal of 139005701 is 107500931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111809476 + 27196225 = 10574^2 + 5215^2 .

It is an emirp because it is prime and its reverse (107500931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 139005701 - 2¹⁴ = 138989317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139005731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69502850 + 69502851.

It is an arithmetic number, because the mean of its divisors is an integer number (69502851).

Almost surely, 2^139005701 is an apocalyptic number.

It is an amenable number.

139005701 is a deficient number, since it is larger than the sum of its proper divisors (1).

139005701 is an equidigital number, since it uses as much as digits as its factorization.

139005701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 945, while the sum is 26.

The square root of 139005701 is about 11790.0678963270. The cubic root of 139005701 is about 518.0172285977.

The spelling of 139005701 in words is "one hundred thirty-nine million, five thousand, seven hundred one".