22245357 has 4 divisors (see below), whose sum is σ = 29660480. Its totient is φ = 14830236.

The previous prime is 22245343. The next prime is 22245359. The reversal of 22245357 is 75354222.

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 not a de Polignac number, because 22245357 - 2⁴ = 22245341 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 (22245359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3707557 + ... + 3707562.

It is an arithmetic number, because the mean of its divisors is an integer number (7415120).

Almost surely, 2^22245357 is an apocalyptic number.

It is an amenable number.

22245357 is a deficient number, since it is larger than the sum of its proper divisors (7415123).

22245357 is an equidigital number, since it uses as much as digits as its factorization.

22245357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7415122.

The product of its digits is 16800, while the sum is 30.

The square root of 22245357 is about 4716.4983833348. The cubic root of 22245357 is about 281.2417510667.

Adding to 22245357 its reverse (75354222), we get a palindrome (97599579).

The spelling of 22245357 in words is "twenty-two million, two hundred forty-five thousand, three hundred fifty-seven".