9172242007 has 4 divisors (see below), whose sum is σ = 9180970216. Its totient is φ = 9163513800.

The previous prime is 9172241989. The next prime is 9172242019. The reversal of 9172242007 is 7002422719.

It is a happy number.

9172242007 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9172242007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9172242907) 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 3 ways as a sum of consecutive naturals, for example, 4362528 + ... + 4364629.

It is an arithmetic number, because the mean of its divisors is an integer number (2295242554).

Almost surely, 2^9172242007 is an apocalyptic number.

9172242007 is a deficient number, since it is larger than the sum of its proper divisors (8728209).

9172242007 is a wasteful number, since it uses less digits than its factorization.

9172242007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8728208.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 9172242007 is about 95771.8226150051. The cubic root of 9172242007 is about 2093.2696094851.

The spelling of 9172242007 in words is "nine billion, one hundred seventy-two million, two hundred forty-two thousand, seven".