172001252301 has 16 divisors (see below), whose sum is σ = 229861023744. Its totient is φ = 114404606064.

The previous prime is 172001252287. The next prime is 172001252309. The reversal of 172001252301 is 103252100271.

It is not a de Polignac number, because 172001252301 - 2⁶ = 172001252237 is a prime.

It is a super-2 number, since 2×172001252301² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172001252309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7420536 + ... + 7443678.

It is an arithmetic number, because the mean of its divisors is an integer number (14366313984).

Almost surely, 2^172001252301 is an apocalyptic number.

It is an amenable number.

172001252301 is a deficient number, since it is larger than the sum of its proper divisors (57859771443).

172001252301 is a wasteful number, since it uses less digits than its factorization.

172001252301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28720.

The product of its (nonzero) digits is 840, while the sum is 24.

Adding to 172001252301 its reverse (103252100271), we get a palindrome (275253352572).

The spelling of 172001252301 in words is "one hundred seventy-two billion, one million, two hundred fifty-two thousand, three hundred one".