172037106 has 48 divisors (see below), whose sum is σ = 391435200. Its totient is φ = 54530784.

The previous prime is 172037101. The next prime is 172037113. The reversal of 172037106 is 601730271.

It is a self number, because there is not a number n which added to its sum of digits gives 172037106.

It is not an unprimeable number, because it can be changed into a prime (172037101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32515 + ... + 37433.

It is an arithmetic number, because the mean of its divisors is an integer number (8154900).

Almost surely, 2^172037106 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 172037106, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195717600).

172037106 is an abundant number, since it is smaller than the sum of its proper divisors (219398094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

172037106 is a wasteful number, since it uses less digits than its factorization.

172037106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5023 (or 5020 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 172037106 is about 13116.2916253032. The cubic root of 172037106 is about 556.1697655431.

Adding to 172037106 its reverse (601730271), we get a palindrome (773767377).

The spelling of 172037106 in words is "one hundred seventy-two million, thirty-seven thousand, one hundred six".