12491475 has 24 divisors (see below), whose sum is σ = 20808192. Its totient is φ = 6612000.

The previous prime is 12491449. The next prime is 12491477. The reversal of 12491475 is 57419421.

It is a happy number.

It is not a de Polignac number, because 12491475 - 2⁵ = 12491443 is a prime.

It is a super-3 number, since 3×12491475³ (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (12491477) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10774 + ... + 11876.

It is an arithmetic number, because the mean of its divisors is an integer number (867008).

Almost surely, 2^12491475 is an apocalyptic number.

12491475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12491475 is a deficient number, since it is larger than the sum of its proper divisors (8316717).

12491475 is a wasteful number, since it uses less digits than its factorization.

12491475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267 (or 1262 counting only the distinct ones).

The product of its digits is 10080, while the sum is 33.

The square root of 12491475 is about 3534.3280832430. The cubic root of 12491475 is about 232.0266702890.

The spelling of 12491475 in words is "twelve million, four hundred ninety-one thousand, four hundred seventy-five".