172107105 has 8 divisors (see below), whose sum is σ = 275371392. Its totient is φ = 91790448.

The previous prime is 172107079. The next prime is 172107107. The reversal of 172107105 is 501701271.

It is a happy number.

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

It is not a de Polignac number, because 172107105 - 2⁶ = 172107041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (172107107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5736889 + ... + 5736918.

It is an arithmetic number, because the mean of its divisors is an integer number (34421424).

Almost surely, 2^172107105 is an apocalyptic number.

172107105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

172107105 is a deficient number, since it is larger than the sum of its proper divisors (103264287).

172107105 is a wasteful number, since it uses less digits than its factorization.

172107105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11473815.

The product of its (nonzero) digits is 490, while the sum is 24.

The square root of 172107105 is about 13118.9597529682. The cubic root of 172107105 is about 556.2451873505.

Adding to 172107105 its reverse (501701271), we get a palindrome (673808376).

The spelling of 172107105 in words is "one hundred seventy-two million, one hundred seven thousand, one hundred five".