12182642 has 8 divisors (see below), whose sum is σ = 19348956. Its totient is φ = 5732992.

The previous prime is 12182641. The next prime is 12182683. The reversal of 12182642 is 24628121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11771761 + 410881 = 3431^2 + 641^2 .

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

It is a super-2 number, since 2×12182642² = 296833532200328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12182641) 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, 179123 + ... + 179190.

Almost surely, 2^12182642 is an apocalyptic number.

12182642 is a deficient number, since it is larger than the sum of its proper divisors (7166314).

12182642 is a wasteful number, since it uses less digits than its factorization.

12182642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358332.

The product of its digits is 1536, while the sum is 26.

The square root of 12182642 is about 3490.3641643817. The cubic root of 12182642 is about 230.0985211192.

It can be divided in two parts, 1218264 and 2, that multiplied together give a triangular number (2436528 = T₂₂₀₇).

The spelling of 12182642 in words is "twelve million, one hundred eighty-two thousand, six hundred forty-two".