173212021532 has 48 divisors (see below), whose sum is σ = 341329089024. Its totient is φ = 76225968000.

The previous prime is 173212021529. The next prime is 173212021571. The reversal of 173212021532 is 235120212371.

It is a junction number, because it is equal to n+sod(n) for n = 173212021495 and 173212021504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130148 + ... + 602795.

It is an arithmetic number, because the mean of its divisors is an integer number (7111022688).

Almost surely, 2^173212021532 is an apocalyptic number.

It is an amenable number.

173212021532 is a deficient number, since it is larger than the sum of its proper divisors (168117067492).

173212021532 is a wasteful number, since it uses less digits than its factorization.

173212021532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733130 (or 733128 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The spelling of 173212021532 in words is "one hundred seventy-three billion, two hundred twelve million, twenty-one thousand, five hundred thirty-two".