10172215 has 8 divisors (see below), whose sum is σ = 12328128. Its totient is φ = 8056800.

The previous prime is 10172203. The next prime is 10172219. The reversal of 10172215 is 51227101.

10172215 = 10² + 11² + ... + 312².

10172215 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 10172215 - 2¹⁵ = 10139447 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10172192 and 10172201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10172219) 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, 9567 + ... + 10576.

It is an arithmetic number, because the mean of its divisors is an integer number (1541016).

Almost surely, 2^10172215 is an apocalyptic number.

10172215 is a deficient number, since it is larger than the sum of its proper divisors (2155913).

10172215 is a wasteful number, since it uses less digits than its factorization.

10172215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20249.

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 10172215 is about 3189.3910077004. The cubic root of 10172215 is about 216.6731898102.

Adding to 10172215 its reverse (51227101), we get a palindrome (61399316).

It can be divided in two parts, 10 and 172215, that added together give a square (172225 = 415²).

The spelling of 10172215 in words is "ten million, one hundred seventy-two thousand, two hundred fifteen".