9172144152 has 24 divisors (see below), whose sum is σ = 24841223940. Its totient is φ = 3057381360.

The previous prime is 9172144133. The next prime is 9172144169. The reversal of 9172144152 is 2514412719.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63695374 + ... + 63695517.

Almost surely, 2^9172144152 is an apocalyptic number.

It is an amenable number.

9172144152 is an abundant number, since it is smaller than the sum of its proper divisors (15669079788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9172144152 is a wasteful number, since it uses less digits than its factorization.

9172144152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127390903 (or 127390896 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 9172144152 is about 95771.3117379103. The cubic root of 9172144152 is about 2093.2621653718.

The spelling of 9172144152 in words is "nine billion, one hundred seventy-two million, one hundred forty-four thousand, one hundred fifty-two".