139833263 has 2 divisors, whose sum is σ = 139833264. Its totient is φ = 139833262.

The previous prime is 139833259. The next prime is 139833283. The reversal of 139833263 is 362338931.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 139833263 - 2² = 139833259 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139833203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69916631 + 69916632.

It is an arithmetic number, because the mean of its divisors is an integer number (69916632).

Almost surely, 2^139833263 is an apocalyptic number.

139833263 is a deficient number, since it is larger than the sum of its proper divisors (1).

139833263 is an equidigital number, since it uses as much as digits as its factorization.

139833263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 38.

The square root of 139833263 is about 11825.1115428143. Note that the first 3 decimals coincide. The cubic root of 139833263 is about 519.0431899886.

The spelling of 139833263 in words is "one hundred thirty-nine million, eight hundred thirty-three thousand, two hundred sixty-three".