12491148 has 12 divisors (see below), whose sum is σ = 29146040. Its totient is φ = 4163712.

The previous prime is 12491137. The next prime is 12491159. The reversal of 12491148 is 84119421.

It is an interprime number because it is at equal distance from previous prime (12491137) and next prime (12491159).

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) 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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 520453 + ... + 520476.

Almost surely, 2^12491148 is an apocalyptic number.

It is an amenable number.

12491148 is an abundant number, since it is smaller than the sum of its proper divisors (16654892).

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

12491148 is a wasteful number, since it uses less digits than its factorization.

12491148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040936 (or 1040934 counting only the distinct ones).

The product of its digits is 2304, while the sum is 30.

The square root of 12491148 is about 3534.2818223792. The cubic root of 12491148 is about 232.0246456180.

The spelling of 12491148 in words is "twelve million, four hundred ninety-one thousand, one hundred forty-eight".