139952303 has 2 divisors, whose sum is σ = 139952304. Its totient is φ = 139952302.

The previous prime is 139952297. The next prime is 139952317. The reversal of 139952303 is 303259931.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 139952303 - 2⁴ = 139952287 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 (139952363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69976151 + 69976152.

It is an arithmetic number, because the mean of its divisors is an integer number (69976152).

Almost surely, 2^139952303 is an apocalyptic number.

139952303 is a deficient number, since it is larger than the sum of its proper divisors (1).

139952303 is an equidigital number, since it uses as much as digits as its factorization.

139952303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21870, while the sum is 35.

The square root of 139952303 is about 11830.1438283733. The cubic root of 139952303 is about 519.1904352988.

Subtracting 139952303 from its reverse (303259931), we obtain a triangular number (163307628 = T₁₈₀₇₂).

The spelling of 139952303 in words is "one hundred thirty-nine million, nine hundred fifty-two thousand, three hundred three".