139907 has 2 divisors, whose sum is σ = 139908. Its totient is φ = 139906.

The previous prime is 139901. The next prime is 139921. The reversal of 139907 is 709931.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 139907 - 2⁴ = 139891 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 139907.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 139907.

It is not a weakly prime, because it can be changed into another prime (139901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69953 + 69954.

It is an arithmetic number, because the mean of its divisors is an integer number (69954).

2¹³⁹⁹⁰⁷ is an apocalyptic number.

139907 is a deficient number, since it is larger than the sum of its proper divisors (1).

139907 is an equidigital number, since it uses as much as digits as its factorization.

139907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1701, while the sum is 29.

The square root of 139907 is about 374.0414415543. The cubic root of 139907 is about 51.9134408061.

The spelling of 139907 in words is "one hundred thirty-nine thousand, nine hundred seven".