12401045 has 4 divisors (see below), whose sum is σ = 14881260. Its totient is φ = 9920832.

The previous prime is 12401027. The next prime is 12401047. The reversal of 12401045 is 54010421.

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 9296401 + 3104644 = 3049^2 + 1762^2 .

It is a cyclic number.

It is not a de Polignac number, because 12401045 - 2⁶ = 12400981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12401047) 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, 1240100 + ... + 1240109.

It is an arithmetic number, because the mean of its divisors is an integer number (3720315).

Almost surely, 2^12401045 is an apocalyptic number.

It is an amenable number.

12401045 is a deficient number, since it is larger than the sum of its proper divisors (2480215).

12401045 is an equidigital number, since it uses as much as digits as its factorization.

12401045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2480214.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 12401045 is about 3521.5117492350. The cubic root of 12401045 is about 231.4654072741.

Adding to 12401045 its reverse (54010421), we get a palindrome (66411466).

The spelling of 12401045 in words is "twelve million, four hundred one thousand, forty-five".