172130659 has 4 divisors (see below), whose sum is σ = 172247904. Its totient is φ = 172013416.

The previous prime is 172130641. The next prime is 172130681. The reversal of 172130659 is 956031271.

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

It is a cyclic number.

It is not a de Polignac number, because 172130659 - 2¹¹ = 172128611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172130359) 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, 56392 + ... + 59365.

It is an arithmetic number, because the mean of its divisors is an integer number (43061976).

Almost surely, 2^172130659 is an apocalyptic number.

172130659 is a deficient number, since it is larger than the sum of its proper divisors (117245).

172130659 is a wasteful number, since it uses less digits than its factorization.

172130659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117244.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 172130659 is about 13119.8574306278. The cubic root of 172130659 is about 556.2705614754.

The spelling of 172130659 in words is "one hundred seventy-two million, one hundred thirty thousand, six hundred fifty-nine".