12401135 has 4 divisors (see below), whose sum is σ = 14881368. Its totient is φ = 9920904.

The previous prime is 12401111. The next prime is 12401141. The reversal of 12401135 is 53110421.

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

It is a cyclic number.

It is not a de Polignac number, because 12401135 - 2⁸ = 12400879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1240109 + ... + 1240118.

It is an arithmetic number, because the mean of its divisors is an integer number (3720342).

Almost surely, 2^12401135 is an apocalyptic number.

12401135 is a deficient number, since it is larger than the sum of its proper divisors (2480233).

12401135 is an equidigital number, since it uses as much as digits as its factorization.

12401135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2480232.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 12401135 is about 3521.5245278146. The cubic root of 12401135 is about 231.4659672226.

Adding to 12401135 its reverse (53110421), we get a palindrome (65511556).

The spelling of 12401135 in words is "twelve million, four hundred one thousand, one hundred thirty-five".