9491903139 has 8 divisors (see below), whose sum is σ = 12781176912. Its totient is φ = 6265282400.

The previous prime is 9491903129. The next prime is 9491903149. The reversal of 9491903139 is 9313091949.

9491903139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (9491903129) and next prime (9491903149).

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 9491903139 - 2⁵ = 9491903107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9491903129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15662904 + ... + 15663509.

It is an arithmetic number, because the mean of its divisors is an integer number (1597647114).

Almost surely, 2^9491903139 is an apocalyptic number.

9491903139 is a deficient number, since it is larger than the sum of its proper divisors (3289273773).

9491903139 is a wasteful number, since it uses less digits than its factorization.

9491903139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31326517.

The product of its (nonzero) digits is 236196, while the sum is 48.

The square root of 9491903139 is about 97426.3985734873. The cubic root of 9491903139 is about 2117.3099215458.

The spelling of 9491903139 in words is "nine billion, four hundred ninety-one million, nine hundred three thousand, one hundred thirty-nine".