245054445 has 32 divisors (see below), whose sum is σ = 399237120. Its totient is φ = 128331840.

The previous prime is 245054423. The next prime is 245054449. The reversal of 245054445 is 544450542.

It is not a de Polignac number, because 245054445 - 2⁹ = 245053933 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245054449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 268540 + ... + 269450.

It is an arithmetic number, because the mean of its divisors is an integer number (12476160).

Almost surely, 2^245054445 is an apocalyptic number.

It is an amenable number.

245054445 is a deficient number, since it is larger than the sum of its proper divisors (154182675).

245054445 is a wasteful number, since it uses less digits than its factorization.

245054445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225.

The product of its (nonzero) digits is 64000, while the sum is 33.

The square root of 245054445 is about 15654.2149276161. The cubic root of 245054445 is about 625.7788221612.

The spelling of 245054445 in words is "two hundred forty-five million, fifty-four thousand, four hundred forty-five".