8122454172 has 120 divisors (see below), whose sum is σ = 25544435840. Its totient is φ = 2198547360.

The previous prime is 8122454149. The next prime is 8122454201. The reversal of 8122454172 is 2714542218.

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 polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 51154 + ... + 137337.

Almost surely, 2^8122454172 is an apocalyptic number.

It is an amenable number.

8122454172 is an abundant number, since it is smaller than the sum of its proper divisors (17421981668).

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

8122454172 is a wasteful number, since it uses less digits than its factorization.

8122454172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188533 (or 188522 counting only the distinct ones).

The product of its digits is 35840, while the sum is 36.

The square root of 8122454172 is about 90124.6590673163. The cubic root of 8122454172 is about 2010.1528865663.

The spelling of 8122454172 in words is "eight billion, one hundred twenty-two million, four hundred fifty-four thousand, one hundred seventy-two".