147171380 has 24 divisors (see below), whose sum is σ = 327240648. Its totient is φ = 55405568.

The previous prime is 147171347. The next prime is 147171389. The reversal of 147171380 is 83171741.

It is a happy number.

147171380 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 31651876 + 115519504 = 5626^2 + 10748^2 .

It is a super-2 number, since 2×147171380² = 43318830182208800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147171389) by changing a digit.

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, 216089 + ... + 216768.

It is an arithmetic number, because the mean of its divisors is an integer number (13635027).

Almost surely, 2^147171380 is an apocalyptic number.

147171380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

147171380 is an abundant number, since it is smaller than the sum of its proper divisors (180069268).

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

147171380 is a wasteful number, since it uses less digits than its factorization.

147171380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432883 (or 432881 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 32.

The square root of 147171380 is about 12131.4211863244. The cubic root of 147171380 is about 527.9682267764.

The spelling of 147171380 in words is "one hundred forty-seven million, one hundred seventy-one thousand, three hundred eighty".