9117372149 has 4 divisors (see below), whose sum is σ = 9411480960. Its totient is φ = 8823263340.

The previous prime is 9117372107. The next prime is 9117372151. The reversal of 9117372149 is 9412737119.

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 a cyclic number.

It is not a de Polignac number, because 9117372149 - 2¹² = 9117368053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9117372179) 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, 147054359 + ... + 147054420.

It is an arithmetic number, because the mean of its divisors is an integer number (2352870240).

Almost surely, 2^9117372149 is an apocalyptic number.

It is an amenable number.

9117372149 is a deficient number, since it is larger than the sum of its proper divisors (294108811).

9117372149 is a wasteful number, since it uses less digits than its factorization.

9117372149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294108810.

The product of its digits is 95256, while the sum is 44.

The square root of 9117372149 is about 95484.9315284878. The cubic root of 9117372149 is about 2089.0871641493.

The spelling of 9117372149 in words is "nine billion, one hundred seventeen million, three hundred seventy-two thousand, one hundred forty-nine".