9139623501 has 4 divisors (see below), whose sum is σ = 12186164672. Its totient is φ = 6093082332.

The previous prime is 9139623463. The next prime is 9139623529. The reversal of 9139623501 is 1053269319.

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 9139623501 - 2¹⁰ = 9139622477 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9139623501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9139623301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1523270581 + ... + 1523270586.

It is an arithmetic number, because the mean of its divisors is an integer number (3046541168).

Almost surely, 2^9139623501 is an apocalyptic number.

It is an amenable number.

9139623501 is a deficient number, since it is larger than the sum of its proper divisors (3046541171).

9139623501 is a wasteful number, since it uses less digits than its factorization.

9139623501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3046541170.

The product of its (nonzero) digits is 43740, while the sum is 39.

The square root of 9139623501 is about 95601.3781333721. The cubic root of 9139623501 is about 2090.7852868113.

The spelling of 9139623501 in words is "nine billion, one hundred thirty-nine million, six hundred twenty-three thousand, five hundred one".