12173402 has 4 divisors (see below), whose sum is σ = 18260106. Its totient is φ = 6086700.

The previous prime is 12173387. The next prime is 12173419. The reversal of 12173402 is 20437121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10182481 + 1990921 = 3191^2 + 1411^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3043349 + ... + 3043352.

Almost surely, 2^12173402 is an apocalyptic number.

12173402 is a deficient number, since it is larger than the sum of its proper divisors (6086704).

12173402 is an equidigital number, since it uses as much as digits as its factorization.

12173402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6086703.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 12173402 is about 3489.0402691858. The cubic root of 12173402 is about 230.0403331913.

The spelling of 12173402 in words is "twelve million, one hundred seventy-three thousand, four hundred two".