12541501 has 18 divisors (see below), whose sum is σ = 15419070. Its totient is φ = 10169712.

The previous prime is 12541493. The next prime is 12541513. The reversal of 12541501 is 10514521.

It can be written as a sum of positive squares in only one way, i.e., 8561476 + 3980025 = 2926^2 + 1995^2 .

It is not a de Polignac number, because 12541501 - 2³ = 12541493 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12541541) 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 17 ways as a sum of consecutive naturals, for example, 17335 + ... + 18043.

It is an arithmetic number, because the mean of its divisors is an integer number (856615).

Almost surely, 2^12541501 is an apocalyptic number.

It is an amenable number.

12541501 is a deficient number, since it is larger than the sum of its proper divisors (2877569).

12541501 is an equidigital number, since it uses as much as digits as its factorization.

12541501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761 (or 735 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 12541501 is about 3541.3981702147. The cubic root of 12541501 is about 232.3359987307.

The spelling of 12541501 in words is "twelve million, five hundred forty-one thousand, five hundred one".