173130888100 has 27 divisors (see below), whose sum is σ = 375703056547. Its totient is φ = 69250690880.

The previous prime is 173130888071. The next prime is 173130888107. The reversal of 173130888100 is 1888031371.

It is a happy number.

The square root of 173130888100 is 416090.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 32361851236 + 140769036864 = 179894^2 + 375192^2 .

It is a super-2 number, since 2×173130888100² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (173130888107) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4140096 + ... + 4181704.

Almost surely, 2^173130888100 is an apocalyptic number.

173130888100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

173130888100 is the 416090-th square number.

It is an amenable number.

173130888100 is an abundant number, since it is smaller than the sum of its proper divisors (202572168447).

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

173130888100 is an frugal number, since it uses more digits than its factorization.

173130888100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83232 (or 41616 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 40.

The spelling of 173130888100 in words is "one hundred seventy-three billion, one hundred thirty million, eight hundred eighty-eight thousand, one hundred".