139806203 has 2 divisors, whose sum is σ = 139806204. Its totient is φ = 139806202.

The previous prime is 139806179. The next prime is 139806281. The reversal of 139806203 is 302608931.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 139806203 - 2¹⁰ = 139805179 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 139806203.

It is a weakly prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69903101 + 69903102.

It is an arithmetic number, because the mean of its divisors is an integer number (69903102).

Almost surely, 2^139806203 is an apocalyptic number.

139806203 is a deficient number, since it is larger than the sum of its proper divisors (1).

139806203 is an equidigital number, since it uses as much as digits as its factorization.

139806203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 139806203 is about 11823.9673122011. The cubic root of 139806203 is about 519.0097067421.

The spelling of 139806203 in words is "one hundred thirty-nine million, eight hundred six thousand, two hundred three".