9139489 has 8 divisors (see below), whose sum is σ = 9707688. Its totient is φ = 8574720.

The previous prime is 9139483. The next prime is 9139517. The reversal of 9139489 is 9849319.

It can be written as a sum of positive squares in 4 ways, for example, as 613089 + 8526400 = 783^2 + 2920^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9139489 - 2⁵ = 9139457 is a prime.

It is a super-2 number, since 2×9139489² = 167060518362242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9139483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6519 + ... + 7795.

It is an arithmetic number, because the mean of its divisors is an integer number (1213461).

Almost surely, 2^9139489 is an apocalyptic number.

It is an amenable number.

9139489 is a deficient number, since it is larger than the sum of its proper divisors (568199).

9139489 is a wasteful number, since it uses less digits than its factorization.

9139489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715.

The product of its digits is 69984, while the sum is 43.

The square root of 9139489 is about 3023.1587784964. The cubic root of 9139489 is about 209.0775030587.

The spelling of 9139489 in words is "nine million, one hundred thirty-nine thousand, four hundred eighty-nine".