172103224 has 32 divisors (see below), whose sum is σ = 326845440. Its totient is φ = 84952800.

The previous prime is 172103221. The next prime is 172103249. The reversal of 172103224 is 422301271.

It is a super-2 number, since 2×172103224² = 59239039422388352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 172103195 and 172103204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172103221) 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, 248719 + ... + 249409.

It is an arithmetic number, because the mean of its divisors is an integer number (10213920).

Almost surely, 2^172103224 is an apocalyptic number.

It is an amenable number.

172103224 is a deficient number, since it is larger than the sum of its proper divisors (154742216).

172103224 is a wasteful number, since it uses less digits than its factorization.

172103224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051 (or 1047 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 172103224 is about 13118.8118364431. The cubic root of 172103224 is about 556.2410062258.

Adding to 172103224 its reverse (422301271), we get a palindrome (594404495).

The spelling of 172103224 in words is "one hundred seventy-two million, one hundred three thousand, two hundred twenty-four".