172235713 has 8 divisors (see below), whose sum is σ = 186366656. Its totient is φ = 158230800.

The previous prime is 172235699. The next prime is 172235719. The reversal of 172235713 is 317532271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-172235713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172235719) 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 7 ways as a sum of consecutive naturals, for example, 28653 + ... + 34138.

It is an arithmetic number, because the mean of its divisors is an integer number (23295832).

Almost surely, 2^172235713 is an apocalyptic number.

172235713 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

172235713 is a deficient number, since it is larger than the sum of its proper divisors (14130943).

172235713 is a wasteful number, since it uses less digits than its factorization.

172235713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63015.

The product of its digits is 8820, while the sum is 31.

The square root of 172235713 is about 13123.8604457682. The cubic root of 172235713 is about 556.3837052994.

Adding to 172235713 its reverse (317532271), we get a palindrome (489767984).

The spelling of 172235713 in words is "one hundred seventy-two million, two hundred thirty-five thousand, seven hundred thirteen".