12549801 has 16 divisors (see below), whose sum is σ = 18463680. Its totient is φ = 7518720.

The previous prime is 12549787. The next prime is 12549809. The reversal of 12549801 is 10894521.

It is a happy number.

It is not a de Polignac number, because 12549801 - 2⁵ = 12549769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12549809) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 801 + ... + 5073.

It is an arithmetic number, because the mean of its divisors is an integer number (1153980).

Almost surely, 2^12549801 is an apocalyptic number.

12549801 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12549801 is a deficient number, since it is larger than the sum of its proper divisors (5913879).

12549801 is a wasteful number, since it uses less digits than its factorization.

12549801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4376.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 12549801 is about 3542.5698299398. The cubic root of 12549801 is about 232.3872409635.

The spelling of 12549801 in words is "twelve million, five hundred forty-nine thousand, eight hundred one".