173138700 has 144 divisors (see below), whose sum is σ = 592462080. Its totient is φ = 38196480.

The previous prime is 173138677. The next prime is 173138701. The reversal of 173138700 is 7831371.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (173138701) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 59479 + ... + 62321.

It is an arithmetic number, because the mean of its divisors is an integer number (4114320).

Almost surely, 2^173138700 is an apocalyptic number.

173138700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 173138700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296231040).

173138700 is an abundant number, since it is smaller than the sum of its proper divisors (419323380).

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

173138700 is a wasteful number, since it uses less digits than its factorization.

173138700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2896 (or 2889 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 173138700 is about 13158.2179644510. The cubic root of 173138700 is about 557.3543359847.

The spelling of 173138700 in words is "one hundred seventy-three million, one hundred thirty-eight thousand, seven hundred".