12489001 has 16 divisors (see below), whose sum is σ = 14970880. Its totient is φ = 10193040.

The previous prime is 12488941. The next prime is 12489047. The reversal of 12489001 is 10098421.

12489001 = 161² + 162² + ... + 346².

It is a happy number.

12489001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12489001 - 2¹⁹ = 11964713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12489601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14110 + ... + 14968.

It is an arithmetic number, because the mean of its divisors is an integer number (935680).

Almost surely, 2^12489001 is an apocalyptic number.

It is an amenable number.

12489001 is a deficient number, since it is larger than the sum of its proper divisors (2481879).

12489001 is an equidigital number, since it uses as much as digits as its factorization.

12489001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 12489001 is about 3533.9780701074. The cubic root of 12489001 is about 232.0113512579.

The spelling of 12489001 in words is "twelve million, four hundred eighty-nine thousand, one".