12173955 has 16 divisors (see below), whose sum is σ = 20624544. Its totient is φ = 6110720.

The previous prime is 12173951. The next prime is 12173971. The reversal of 12173955 is 55937121.

It is not a de Polignac number, because 12173955 - 2² = 12173951 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12173951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23616 + ... + 24125.

It is an arithmetic number, because the mean of its divisors is an integer number (1289034).

Almost surely, 2^12173955 is an apocalyptic number.

12173955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12173955 is a deficient number, since it is larger than the sum of its proper divisors (8450589).

12173955 is a wasteful number, since it uses less digits than its factorization.

12173955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47766.

The product of its digits is 9450, while the sum is 33.

The square root of 12173955 is about 3489.1195164396. The cubic root of 12173955 is about 230.0438164789.

The spelling of 12173955 in words is "twelve million, one hundred seventy-three thousand, nine hundred fifty-five".