12490505 has 8 divisors (see below), whose sum is σ = 15777600. Its totient is φ = 9466416.

The previous prime is 12490493. The next prime is 12490507. The reversal of 12490505 is 50509421.

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

It is a cyclic number.

It is not a de Polignac number, because 12490505 - 2¹⁰ = 12489481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12490507) 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 7 ways as a sum of consecutive naturals, for example, 65645 + ... + 65834.

It is an arithmetic number, because the mean of its divisors is an integer number (1972200).

Almost surely, 2^12490505 is an apocalyptic number.

It is an amenable number.

12490505 is a deficient number, since it is larger than the sum of its proper divisors (3287095).

12490505 is a wasteful number, since it uses less digits than its factorization.

12490505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131503.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 12490505 is about 3534.1908550615. The cubic root of 12490505 is about 232.0206642811.

Adding to 12490505 its reverse (50509421), we get a palindrome (62999926).

The spelling of 12490505 in words is "twelve million, four hundred ninety thousand, five hundred five".