12402255 has 16 divisors (see below), whose sum is σ = 19966464. Its totient is φ = 6573600.

The previous prime is 12402253. The next prime is 12402259. The reversal of 12402255 is 55220421.

It is a happy number.

It is not a de Polignac number, because 12402255 - 2¹ = 12402253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12402251) 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, 30 + ... + 4980.

It is an arithmetic number, because the mean of its divisors is an integer number (1247904).

Almost surely, 2^12402255 is an apocalyptic number.

12402255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12402255 is a deficient number, since it is larger than the sum of its proper divisors (7564209).

12402255 is a wasteful number, since it uses less digits than its factorization.

12402255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5126.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 12402255 is about 3521.6835462602. The cubic root of 12402255 is about 231.4729352428.

Adding to 12402255 its reverse (55220421), we get a palindrome (67622676).

The spelling of 12402255 in words is "twelve million, four hundred two thousand, two hundred fifty-five".