9139923529 has 4 divisors (see below), whose sum is σ = 9970825680. Its totient is φ = 8309021380.

The previous prime is 9139923509. The next prime is 9139923553. The reversal of 9139923529 is 9253299319.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 9139923529 - 2¹⁷ = 9139792457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9139923509) 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 3 ways as a sum of consecutive naturals, for example, 415451059 + ... + 415451080.

It is an arithmetic number, because the mean of its divisors is an integer number (2492706420).

Almost surely, 2^9139923529 is an apocalyptic number.

It is an amenable number.

9139923529 is a deficient number, since it is larger than the sum of its proper divisors (830902151).

9139923529 is a wasteful number, since it uses less digits than its factorization.

9139923529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830902150.

The product of its digits is 1180980, while the sum is 52.

The square root of 9139923529 is about 95602.9472819745. The cubic root of 9139923529 is about 2090.8081647509.

The spelling of 9139923529 in words is "nine billion, one hundred thirty-nine million, nine hundred twenty-three thousand, five hundred twenty-nine".