172315650 has 96 divisors (see below), whose sum is σ = 465470208. Its totient is φ = 41932800.

The previous prime is 172315643. The next prime is 172315681. The reversal of 172315650 is 56513271.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 188695 + ... + 189605.

It is an arithmetic number, because the mean of its divisors is an integer number (4848648).

Almost surely, 2^172315650 is an apocalyptic number.

172315650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 172315650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232735104).

172315650 is an abundant number, since it is smaller than the sum of its proper divisors (293154558).

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

172315650 is a wasteful number, since it uses less digits than its factorization.

172315650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036 (or 1031 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 172315650 is about 13126.9055759535. The cubic root of 172315650 is about 556.4697671361.

The spelling of 172315650 in words is "one hundred seventy-two million, three hundred fifteen thousand, six hundred fifty".