12240901 has 4 divisors (see below), whose sum is σ = 12960972. Its totient is φ = 11520832.

The previous prime is 12240889. The next prime is 12240911. The reversal of 12240901 is 10904221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8236900 + 4004001 = 2870^2 + 2001^2 .

It is not a de Polignac number, because 12240901 - 2⁵ = 12240869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12240911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360010 + ... + 360043.

It is an arithmetic number, because the mean of its divisors is an integer number (3240243).

Almost surely, 2^12240901 is an apocalyptic number.

It is an amenable number.

12240901 is a deficient number, since it is larger than the sum of its proper divisors (720071).

12240901 is an equidigital number, since it uses as much as digits as its factorization.

12240901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720070.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 12240901 is about 3498.6999013919. The cubic root of 12240901 is about 230.4647251462.

The spelling of 12240901 in words is "twelve million, two hundred forty thousand, nine hundred one".