172230449 has 16 divisors (see below), whose sum is σ = 184369920. Its totient is φ = 160574400.

The previous prime is 172230439. The next prime is 172230469. The reversal of 172230449 is 944032271.

It is a cyclic number.

It is not a de Polignac number, because 172230449 - 2²⁰ = 171181873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172230439) 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, 161492 + ... + 162554.

It is an arithmetic number, because the mean of its divisors is an integer number (11523120).

Almost surely, 2^172230449 is an apocalyptic number.

It is an amenable number.

172230449 is a deficient number, since it is larger than the sum of its proper divisors (12139471).

172230449 is a wasteful number, since it uses less digits than its factorization.

172230449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 172230449 is about 13123.6598934901. The cubic root of 172230449 is about 556.3780370331.

The spelling of 172230449 in words is "one hundred seventy-two million, two hundred thirty thousand, four hundred forty-nine".