13220193 has 32 divisors (see below), whose sum is σ = 21307392. Its totient is φ = 7128000.

The previous prime is 13220191. The next prime is 13220213. The reversal of 13220193 is 39102231.

It is a happy number.

13220193 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13220193 - 2¹ = 13220191 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (13220191) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48648 + ... + 48918.

It is an arithmetic number, because the mean of its divisors is an integer number (665856).

Almost surely, 2^13220193 is an apocalyptic number.

It is an amenable number.

13220193 is a deficient number, since it is larger than the sum of its proper divisors (8087199).

13220193 is a wasteful number, since it uses less digits than its factorization.

13220193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 13220193 is about 3635.9583330946. The cubic root of 13220193 is about 236.4536006962.

The spelling of 13220193 in words is "thirteen million, two hundred twenty thousand, one hundred ninety-three".