103813139 has 2 divisors, whose sum is σ = 103813140. Its totient is φ = 103813138.

The previous prime is 103813117. The next prime is 103813159. The reversal of 103813139 is 931318301.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 103813139 - 2¹⁶ = 103747603 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (103813159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51906569 + 51906570.

It is an arithmetic number, because the mean of its divisors is an integer number (51906570).

Almost surely, 2^103813139 is an apocalyptic number.

103813139 is a deficient number, since it is larger than the sum of its proper divisors (1).

103813139 is an equidigital number, since it uses as much as digits as its factorization.

103813139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 103813139 is about 10188.8732939418. The cubic root of 103813139 is about 469.9851194927.

The spelling of 103813139 in words is "one hundred three million, eight hundred thirteen thousand, one hundred thirty-nine".