172295005 has 4 divisors (see below), whose sum is σ = 206754012. Its totient is φ = 137836000.

The previous prime is 172294987. The next prime is 172295009. The reversal of 172295005 is 500592271.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 86806489 + 85488516 = 9317^2 + 9246^2 .

It is not a de Polignac number, because 172295005 - 2¹¹ = 172292957 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172295009) 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, 17229496 + ... + 17229505.

It is an arithmetic number, because the mean of its divisors is an integer number (51688503).

Almost surely, 2^172295005 is an apocalyptic number.

It is an amenable number.

172295005 is a deficient number, since it is larger than the sum of its proper divisors (34459007).

172295005 is an equidigital number, since it uses as much as digits as its factorization.

172295005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34459006.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 172295005 is about 13126.1191903776. The cubic root of 172295005 is about 556.4475428495.

The spelling of 172295005 in words is "one hundred seventy-two million, two hundred ninety-five thousand, five".