929905139 has 2 divisors, whose sum is σ = 929905140. Its totient is φ = 929905138.

The previous prime is 929905099. The next prime is 929905153. The reversal of 929905139 is 931509929.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 929905139 - 2²⁴ = 913127923 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 929905093 and 929905102.

It is not a weakly prime, because it can be changed into another prime (929905169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 464952569 + 464952570.

It is an arithmetic number, because the mean of its divisors is an integer number (464952570).

Almost surely, 2^929905139 is an apocalyptic number.

929905139 is a deficient number, since it is larger than the sum of its proper divisors (1).

929905139 is an equidigital number, since it uses as much as digits as its factorization.

929905139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 196830, while the sum is 47.

The square root of 929905139 is about 30494.3460169258. The cubic root of 929905139 is about 976.0668187899.

The spelling of 929905139 in words is "nine hundred twenty-nine million, nine hundred five thousand, one hundred thirty-nine".