12549490 has 16 divisors (see below), whose sum is σ = 23571648. Its totient is φ = 4801456.

The previous prime is 12549487. The next prime is 12549521. The reversal of 12549490 is 9494521.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27052 + ... + 27511.

It is an arithmetic number, because the mean of its divisors is an integer number (1473228).

Almost surely, 2^12549490 is an apocalyptic number.

12549490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12549490 is a deficient number, since it is larger than the sum of its proper divisors (11022158).

12549490 is a wasteful number, since it uses less digits than its factorization.

12549490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54593.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 12549490 is about 3542.5259349792. The cubic root of 12549490 is about 232.3853213307.

The spelling of 12549490 in words is "twelve million, five hundred forty-nine thousand, four hundred ninety".