12215074 has 8 divisors (see below), whose sum is σ = 18485100. Its totient is φ = 6053376.

The previous prime is 12215039. The next prime is 12215087. The reversal of 12215074 is 47051221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12215025 + 49 = 3495^2 + 7^2 .

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

It is a nialpdrome in base 16.

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 in 3 ways as a sum of consecutive naturals, for example, 26799 + ... + 27250.

Almost surely, 2^12215074 is an apocalyptic number.

12215074 is a deficient number, since it is larger than the sum of its proper divisors (6270026).

12215074 is a wasteful number, since it uses less digits than its factorization.

12215074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54164.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 12215074 is about 3495.0070100073. The cubic root of 12215074 is about 230.3025256603.

Adding to 12215074 its reverse (47051221), we get a palindrome (59266295).

The spelling of 12215074 in words is "twelve million, two hundred fifteen thousand, seventy-four".