172529140 has 24 divisors (see below), whose sum is σ = 414070272. Its totient is φ = 59152800.

The previous prime is 172529131. The next prime is 172529153. The reversal of 172529140 is 41925271.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 616036 + ... + 616315.

It is an arithmetic number, because the mean of its divisors is an integer number (17252928).

Almost surely, 2^172529140 is an apocalyptic number.

172529140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172529140 is an abundant number, since it is smaller than the sum of its proper divisors (241541132).

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

172529140 is a wasteful number, since it uses less digits than its factorization.

172529140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232367 (or 1232365 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 172529140 is about 13135.0348305591. The cubic root of 172529140 is about 556.6994845214.

The spelling of 172529140 in words is "one hundred seventy-two million, five hundred twenty-nine thousand, one hundred forty".