9445139 has 6 divisors (see below), whose sum is σ = 10381980. Its totient is φ = 8586380.

The previous prime is 9445127. The next prime is 9445169. The reversal of 9445139 is 9315449.

It is a de Polignac number, because none of the positive numbers 2^k-9445139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9445099 and 9445108.

It is not an unprimeable number, because it can be changed into a prime (9445169) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38909 + ... + 39150.

It is an arithmetic number, because the mean of its divisors is an integer number (1730330).

Almost surely, 2^9445139 is an apocalyptic number.

9445139 is a deficient number, since it is larger than the sum of its proper divisors (936841).

9445139 is a wasteful number, since it uses less digits than its factorization.

9445139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78081 (or 78070 counting only the distinct ones).

The product of its digits is 19440, while the sum is 35.

The square root of 9445139 is about 3073.2944863778. The cubic root of 9445139 is about 211.3827050364.

The spelling of 9445139 in words is "nine million, four hundred forty-five thousand, one hundred thirty-nine".