147172432 has 40 divisors (see below), whose sum is σ = 316363680. Its totient is φ = 65758080.

The previous prime is 147172429. The next prime is 147172481. The reversal of 147172432 is 234271741.

It is a junction number, because it is equal to n+sod(n) for n = 147172394 and 147172403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3298 + ... + 17470.

It is an arithmetic number, because the mean of its divisors is an integer number (7909092).

Almost surely, 2^147172432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 147172432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158181840).

147172432 is an abundant number, since it is smaller than the sum of its proper divisors (169191248).

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

147172432 is a wasteful number, since it uses less digits than its factorization.

147172432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14251 (or 14245 counting only the distinct ones).

The product of its digits is 9408, while the sum is 31.

The square root of 147172432 is about 12131.4645447283. The cubic root of 147172432 is about 527.9694847684.

The spelling of 147172432 in words is "one hundred forty-seven million, one hundred seventy-two thousand, four hundred thirty-two".