172101416 has 16 divisors (see below), whose sum is σ = 322830900. Its totient is φ = 86013184.

The previous prime is 172101403. The next prime is 172101443. The reversal of 172101416 is 614101271.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 159921316 + 12180100 = 12646^2 + 3490^2 .

It is a junction number, because it is equal to n+sod(n) for n = 172101391 and 172101400.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29216 + ... + 34608.

Almost surely, 2^172101416 is an apocalyptic number.

It is an amenable number.

172101416 is a deficient number, since it is larger than the sum of its proper divisors (150729484).

172101416 is a wasteful number, since it uses less digits than its factorization.

172101416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9388 (or 9384 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 172101416 is about 13118.7429275827. The cubic root of 172101416 is about 556.2390583885.

Adding to 172101416 its reverse (614101271), we get a palindrome (786202687).

The spelling of 172101416 in words is "one hundred seventy-two million, one hundred one thousand, four hundred sixteen".