12149648 has 30 divisors (see below), whose sum is σ = 27384966. Its totient is φ = 5206656.

The previous prime is 12149633. The next prime is 12149651. The reversal of 12149648 is 84694121.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12054784 + 94864 = 3472^2 + 308^2 .

It is a super-2 number, since 2×12149648² = 295227893047808, which contains 22 as substring.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

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 5 ways as a sum of consecutive naturals, for example, 6965 + ... + 8532.

Almost surely, 2^12149648 is an apocalyptic number.

It is an amenable number.

12149648 is an abundant number, since it is smaller than the sum of its proper divisors (15235318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12149648 is a wasteful number, since it uses less digits than its factorization.

12149648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15519 (or 15506 counting only the distinct ones).

The product of its digits is 13824, while the sum is 35.

The square root of 12149648 is about 3485.6345189936. The cubic root of 12149648 is about 229.8906096067.

The spelling of 12149648 in words is "twelve million, one hundred forty-nine thousand, six hundred forty-eight".