22355197 has 4 divisors (see below), whose sum is σ = 22406560. Its totient is φ = 22303836.

The previous prime is 22355171. The next prime is 22355237. The reversal of 22355197 is 79155322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22355197 - 2¹⁵ = 22322429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22355107) 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, 25023 + ... + 25900.

It is an arithmetic number, because the mean of its divisors is an integer number (5601640).

Almost surely, 2^22355197 is an apocalyptic number.

It is an amenable number.

22355197 is a deficient number, since it is larger than the sum of its proper divisors (51363).

22355197 is an equidigital number, since it uses as much as digits as its factorization.

22355197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51362.

The product of its digits is 18900, while the sum is 34.

The square root of 22355197 is about 4728.1282766016. The cubic root of 22355197 is about 281.7038832904.

The spelling of 22355197 in words is "twenty-two million, three hundred fifty-five thousand, one hundred ninety-seven".