9520139 has 2 divisors, whose sum is σ = 9520140. Its totient is φ = 9520138.

The previous prime is 9520129. The next prime is 9520151. The reversal of 9520139 is 9310259.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9520139 - 2⁴ = 9520123 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9520129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4760069 + 4760070.

It is an arithmetic number, because the mean of its divisors is an integer number (4760070).

Almost surely, 2^9520139 is an apocalyptic number.

9520139 is a deficient number, since it is larger than the sum of its proper divisors (1).

9520139 is an equidigital number, since it uses as much as digits as its factorization.

9520139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2430, while the sum is 29.

The square root of 9520139 is about 3085.4722491055. The cubic root of 9520139 is about 211.9407319192.

The spelling of 9520139 in words is "nine million, five hundred twenty thousand, one hundred thirty-nine".