9172148506 has 8 divisors (see below), whose sum is σ = 13760587764. Its totient is φ = 4585285920.

The previous prime is 9172148501. The next prime is 9172148509. The reversal of 9172148506 is 6058412719.

It can be written as a sum of positive squares in 2 ways, for example, as 9138404025 + 33744481 = 95595^2 + 5809^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×9172148506² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9172148501) 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, 379515 + ... + 402958.

Almost surely, 2^9172148506 is an apocalyptic number.

9172148506 is a deficient number, since it is larger than the sum of its proper divisors (4588439258).

9172148506 is a wasteful number, since it uses less digits than its factorization.

9172148506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788336.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 9172148506 is about 95771.3344691406. The cubic root of 9172148506 is about 2093.2624965944.

The spelling of 9172148506 in words is "nine billion, one hundred seventy-two million, one hundred forty-eight thousand, five hundred six".