172045752 has 48 divisors (see below), whose sum is σ = 440463240. Its totient is φ = 56000448.

The previous prime is 172045751. The next prime is 172045787. The reversal of 172045752 is 257540271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172045751) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42438 + ... + 46314.

Almost surely, 2^172045752 is an apocalyptic number.

172045752 is a gapful number since it is divisible by the number (12) 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 172045752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220231620).

172045752 is an abundant number, since it is smaller than the sum of its proper divisors (268417488).

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

172045752 is a wasteful number, since it uses less digits than its factorization.

172045752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3972 (or 3925 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 33.

The square root of 172045752 is about 13116.6212112724. The cubic root of 172045752 is about 556.1790824541.

The spelling of 172045752 in words is "one hundred seventy-two million, forty-five thousand, seven hundred fifty-two".