172254236 has 48 divisors (see below), whose sum is σ = 381169152. Its totient is φ = 66158400.

The previous prime is 172254233. The next prime is 172254241. The reversal of 172254236 is 632452271.

It is a super-3 number, since 3×172254236³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172254233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17930 + ... + 25806.

It is an arithmetic number, because the mean of its divisors is an integer number (7941024).

Almost surely, 2^172254236 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 172254236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190584576).

172254236 is an abundant number, since it is smaller than the sum of its proper divisors (208914916).

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

172254236 is a wasteful number, since it uses less digits than its factorization.

172254236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7970 (or 7968 counting only the distinct ones).

The product of its digits is 20160, while the sum is 32.

The square root of 172254236 is about 13124.5661261620. The cubic root of 172254236 is about 556.4036499163.

The spelling of 172254236 in words is "one hundred seventy-two million, two hundred fifty-four thousand, two hundred thirty-six".