12172330 has 8 divisors (see below), whose sum is σ = 21910212. Its totient is φ = 4868928.

The previous prime is 12172327. The next prime is 12172333. The reversal of 12172330 is 3327121.

It is an interprime number because it is at equal distance from previous prime (12172327) and next prime (12172333).

It can be written as a sum of positive squares in 2 ways, for example, as 11881809 + 290521 = 3447^2 + 539^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 12172298 and 12172307.

It is not an unprimeable number, because it can be changed into a prime (12172333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 608607 + ... + 608626.

Almost surely, 2^12172330 is an apocalyptic number.

12172330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12172330 is a deficient number, since it is larger than the sum of its proper divisors (9737882).

12172330 is a wasteful number, since it uses less digits than its factorization.

12172330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217240.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 12172330 is about 3488.8866418960. The cubic root of 12172330 is about 230.0335804782.

Adding to 12172330 its reverse (3327121), we get a palindrome (15499451).

The spelling of 12172330 in words is "twelve million, one hundred seventy-two thousand, three hundred thirty".