172140652 has 12 divisors (see below), whose sum is σ = 301662256. Its totient is φ = 85951440.

The previous prime is 172140629. The next prime is 172140667. The reversal of 172140652 is 256041271.

It is a self number, because there is not a number n which added to its sum of digits gives 172140652.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26424 + ... + 32287.

Almost surely, 2^172140652 is an apocalyptic number.

It is an amenable number.

172140652 is a deficient number, since it is larger than the sum of its proper divisors (129521604).

172140652 is a wasteful number, since it uses less digits than its factorization.

172140652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59448 (or 59446 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 172140652 is about 13120.2382600317. The cubic root of 172140652 is about 556.2813259806.

The spelling of 172140652 in words is "one hundred seventy-two million, one hundred forty thousand, six hundred fifty-two".