146139475172 has 12 divisors (see below), whose sum is σ = 270787851180. Its totient is φ = 68771517696.

The previous prime is 146139475169. The next prime is 146139475201. The reversal of 146139475172 is 271574931641.

It can be written as a sum of positive squares in 2 ways, for example, as 100264689316 + 45874785856 = 316646^2 + 214184^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 146139475172.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1074554897 + ... + 1074555032.

It is an arithmetic number, because the mean of its divisors is an integer number (22565654265).

Almost surely, 2^146139475172 is an apocalyptic number.

It is an amenable number.

146139475172 is a deficient number, since it is larger than the sum of its proper divisors (124648376008).

146139475172 is a wasteful number, since it uses less digits than its factorization.

146139475172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2149109950 (or 2149109948 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 50.

The spelling of 146139475172 in words is "one hundred forty-six billion, one hundred thirty-nine million, four hundred seventy-five thousand, one hundred seventy-two".