245222445 has 32 divisors (see below), whose sum is σ = 426754944. Its totient is φ = 119520000.

The previous prime is 245222443. The next prime is 245222449. The reversal of 245222445 is 544222542.

It is not a de Polignac number, because 245222445 - 2¹ = 245222443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245222441) 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, 13470 + ... + 25920.

It is an arithmetic number, because the mean of its divisors is an integer number (13336092).

Almost surely, 2^245222445 is an apocalyptic number.

It is an amenable number.

245222445 is a deficient number, since it is larger than the sum of its proper divisors (181532499).

245222445 is a wasteful number, since it uses less digits than its factorization.

245222445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12573.

The product of its digits is 25600, while the sum is 30.

The square root of 245222445 is about 15659.5799752101. The cubic root of 245222445 is about 625.9217928749.

Adding to 245222445 its reverse (544222542), we get a palindrome (789444987).

The spelling of 245222445 in words is "two hundred forty-five million, two hundred twenty-two thousand, four hundred forty-five".