103500139 has 2 divisors, whose sum is σ = 103500140. Its totient is φ = 103500138.

The previous prime is 103500121. The next prime is 103500143. The reversal of 103500139 is 931005301.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 103500139 - 2¹⁷ = 103369067 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (103500119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51750069 + 51750070.

It is an arithmetic number, because the mean of its divisors is an integer number (51750070).

Almost surely, 2^103500139 is an apocalyptic number.

103500139 is a deficient number, since it is larger than the sum of its proper divisors (1).

103500139 is an equidigital number, since it uses as much as digits as its factorization.

103500139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 405, while the sum is 22.

The square root of 103500139 is about 10173.5018061629. The cubic root of 103500139 is about 469.5123038342.

The spelling of 103500139 in words is "one hundred three million, five hundred thousand, one hundred thirty-nine".