172914065 has 4 divisors (see below), whose sum is σ = 207496884. Its totient is φ = 138331248.

The previous prime is 172914047. The next prime is 172914067. The reversal of 172914065 is 560419271.

172914065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 560419271 = 31 ⋅18078041.

It can be written as a sum of positive squares in 2 ways, for example, as 73393489 + 99520576 = 8567^2 + 9976^2 .

It is a cyclic number.

It is not a de Polignac number, because 172914065 - 2⁸ = 172913809 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (172914067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17291402 + ... + 17291411.

It is an arithmetic number, because the mean of its divisors is an integer number (51874221).

Almost surely, 2^172914065 is an apocalyptic number.

It is an amenable number.

172914065 is a deficient number, since it is larger than the sum of its proper divisors (34582819).

172914065 is an equidigital number, since it uses as much as digits as its factorization.

172914065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34582818.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 172914065 is about 13149.6792736553. The cubic root of 172914065 is about 557.1131892878.

The spelling of 172914065 in words is "one hundred seventy-two million, nine hundred fourteen thousand, sixty-five".