172234563 has 16 divisors (see below), whose sum is σ = 247632000. Its totient is φ = 106125120.

The previous prime is 172234561. The next prime is 172234589. The reversal of 172234563 is 365432271.

It is not a de Polignac number, because 172234563 - 2¹ = 172234561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (172234561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34513 + ... + 39186.

It is an arithmetic number, because the mean of its divisors is an integer number (15477000).

Almost surely, 2^172234563 is an apocalyptic number.

172234563 is a deficient number, since it is larger than the sum of its proper divisors (75397437).

172234563 is a wasteful number, since it uses less digits than its factorization.

172234563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73762.

The product of its digits is 30240, while the sum is 33.

The square root of 172234563 is about 13123.8166323673. The cubic root of 172234563 is about 556.3824669912.

The spelling of 172234563 in words is "one hundred seventy-two million, two hundred thirty-four thousand, five hundred sixty-three".