172213248 has 88 divisors (see below), whose sum is σ = 467043520. Its totient is φ = 56401920.

The previous prime is 172213231. The next prime is 172213253. The reversal of 172213248 is 842312271.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186933 + ... + 187851.

Almost surely, 2^172213248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 172213248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233521760).

172213248 is an abundant number, since it is smaller than the sum of its proper divisors (294830272).

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

172213248 is an equidigital number, since it uses as much as digits as its factorization.

172213248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003 (or 985 counting only the distinct ones).

The product of its digits is 5376, while the sum is 30.

The square root of 172213248 is about 13123.0045340234. The cubic root of 172213248 is about 556.3595142200.

The spelling of 172213248 in words is "one hundred seventy-two million, two hundred thirteen thousand, two hundred forty-eight".