172469136 has 80 divisors (see below), whose sum is σ = 522994304. Its totient is φ = 47941632.

The previous prime is 172469117. The next prime is 172469147. The reversal of 172469136 is 631964271.

It is a super-3 number, since 3×172469136³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 172469094 and 172469103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5496 + ... + 19368.

Almost surely, 2^172469136 is an apocalyptic number.

172469136 is a gapful number since it is divisible by the number (16) 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 172469136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261497152).

172469136 is an abundant number, since it is smaller than the sum of its proper divisors (350525168).

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

172469136 is a wasteful number, since it uses less digits than its factorization.

172469136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13928 (or 13922 counting only the distinct ones).

The product of its digits is 54432, while the sum is 39.

The square root of 172469136 is about 13132.7505116027. The cubic root of 172469136 is about 556.6349387696.

The spelling of 172469136 in words is "one hundred seventy-two million, four hundred sixty-nine thousand, one hundred thirty-six".