172072061 has 8 divisors (see below), whose sum is σ = 196775040. Its totient is φ = 147399408.

The previous prime is 172072057. The next prime is 172072067. The reversal of 172072061 is 160270271.

172072061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 172072061 - 2² = 172072057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 172072061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172072067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6275 + ... + 19583.

It is an arithmetic number, because the mean of its divisors is an integer number (24596880).

Almost surely, 2^172072061 is an apocalyptic number.

It is an amenable number.

172072061 is a deficient number, since it is larger than the sum of its proper divisors (24702979).

172072061 is a wasteful number, since it uses less digits than its factorization.

172072061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15163.

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 172072061 is about 13117.6240607817. The cubic root of 172072061 is about 556.2074310562.

The spelling of 172072061 in words is "one hundred seventy-two million, seventy-two thousand, sixty-one".