172229013 has 12 divisors (see below), whose sum is σ = 271391328. Its totient is φ = 104381160.

The previous prime is 172229003. The next prime is 172229021. The reversal of 172229013 is 310922271.

It is not a de Polignac number, because 172229013 - 2⁴ = 172228997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172229003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 869745 + ... + 869942.

It is an arithmetic number, because the mean of its divisors is an integer number (22615944).

Almost surely, 2^172229013 is an apocalyptic number.

It is an amenable number.

172229013 is a deficient number, since it is larger than the sum of its proper divisors (99162315).

172229013 is a wasteful number, since it uses less digits than its factorization.

172229013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1739704 (or 1739701 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 172229013 is about 13123.6051830280. The cubic root of 172229013 is about 556.3764907306.

The spelling of 172229013 in words is "one hundred seventy-two million, two hundred twenty-nine thousand, thirteen".