12355213 has 4 divisors (see below), whose sum is σ = 13305628. Its totient is φ = 11404800.

The previous prime is 12355199. The next prime is 12355223. The reversal of 12355213 is 31255321.

12355213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31255321 = 23 ⋅1358927.

It can be written as a sum of positive squares in 2 ways, for example, as 5076009 + 7279204 = 2253^2 + 2698^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12355213 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 (12355223) 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, 475188 + ... + 475213.

It is an arithmetic number, because the mean of its divisors is an integer number (3326407).

Almost surely, 2^12355213 is an apocalyptic number.

12355213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12355213 is a deficient number, since it is larger than the sum of its proper divisors (950415).

12355213 is an equidigital number, since it uses as much as digits as its factorization.

12355213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950414.

The product of its digits is 900, while the sum is 22.

The square root of 12355213 is about 3514.9982930295. The cubic root of 12355213 is about 231.1799039556.

The spelling of 12355213 in words is "twelve million, three hundred fifty-five thousand, two hundred thirteen".