12401355 has 16 divisors (see below), whose sum is σ = 19890720. Its totient is φ = 6597888.

The previous prime is 12401351. The next prime is 12401369. The reversal of 12401355 is 55310421.

It is not a de Polignac number, because 12401355 - 2² = 12401351 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12401351) 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, 7809 + ... + 9261.

It is an arithmetic number, because the mean of its divisors is an integer number (1243170).

Almost surely, 2^12401355 is an apocalyptic number.

12401355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12401355 is a deficient number, since it is larger than the sum of its proper divisors (7489365).

12401355 is a wasteful number, since it uses less digits than its factorization.

12401355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2030.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 12401355 is about 3521.5557641474. Note that the first 3 decimals coincide. The cubic root of 12401355 is about 231.4673359739.

Adding to 12401355 its reverse (55310421), we get a palindrome (67711776).

The spelling of 12401355 in words is "twelve million, four hundred one thousand, three hundred fifty-five".